Tech Skills

Data Analytics & Business Intelligence

Excel, SQL, Power BI, Tableau — turn raw data into business decisions

12,861
lessons
Skills in this topic
View full skill map →
Data Literacy
beginner
Write SELECT queries with JOIN and GROUP BY
Excel & Spreadsheets
beginner
Build a dynamic dashboard with pivot tables and slicers
SQL Analytics
intermediate
Write window functions (ROW_NUMBER, LAG, LEAD)
BI Tools
intermediate
Build an interactive dashboard from a SQL source
Python for Data
intermediate
Clean and transform a messy dataset with pandas
Data Storytelling
intermediate
Build a stakeholder dashboard with a narrative structure
ML for Analytics
advanced
Build a churn prediction model
All Reads (3,398) Articles (1309)Blog Posts (1813)Tutorials (251)Research Papers (10)News (15)
Data Analysis Is No Longer Just for Experts: A Beginner’s Guide to Excel and Better Decisions
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 46m ago
Data Analysis Is No Longer Just for Experts: A Beginner’s Guide to Excel and Better Decisions
Data Analysis, Excel for Beginners is a practical step-by-step guide that helps beginners understand data, use Excel, organize… Continue reading on Medium »
How to Scrape Clean Data and Bulk Download Media Without Getting Banned
Medium · Python 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 2h ago
How to Scrape Clean Data and Bulk Download Media Without Getting Banned
A practical guide on building custom Python and JavaScript extraction tools for fast data mining. Continue reading on Medium »
How Porn Shapes Expectations About Real Relationships
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 2h ago
How Porn Shapes Expectations About Real Relationships
porn is a performance not real life Continue reading on Medium »
Building a Dataset of Nigerian Fintech Reviews
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 3h ago
Building a Dataset of Nigerian Fintech Reviews
Every business wants to understand its customers. One of the richest sources of that understanding is often the reviews customers… Continue reading on Medium »
Why Your Best Customer Probably Isn’t Your Most Valuable One
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 4h ago
Why Your Best Customer Probably Isn’t Your Most Valuable One
From RFM segmentation to predictive Customer Lifetime Value using BG/NBD and Gamma-Gamma models. Continue reading on Medium »
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 5h ago
Data Science Training in Hyderabad — Build a Successful Career in Data Science
The demand for skilled data professionals is growing rapidly as businesses increasingly rely on data-driven decision-making. From… Continue reading on Medium »
Why Data Science Is One of the Most Important Skills of the Digital Age
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 6h ago
Why Data Science Is One of the Most Important Skills of the Digital Age
The modern world runs on information, but raw data alone has little value. Its true power lies in interpretation. Continue reading on Medium »
How Data Science Training Improves Employability in the IT Industry
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 6h ago
How Data Science Training Improves Employability in the IT Industry
The contemporary world of IT has become highly dependent on data. In order to know customers better, increase productivity, and make the… Continue reading on Me
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 8h ago
Kickstart Your Career with Data Science Training in Bangalore
In today’s digital world, data has become one of the most valuable assets for businesses. Organizations across industries use data science… Continue reading on
Probabilistic Outcome Prediction with Poisson Regression and Monte Carlo Methods
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 9h ago
Probabilistic Outcome Prediction with Poisson Regression and Monte Carlo Methods
An empirical evaluation using the 2026 FIFA World Cup as a live case study Continue reading on Medium »
Medium · Python 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 11h ago
Data Analytics Training in Chandigarh
Data Analytics Training in Chandigarh: Build a Successful Career with Data Skills Continue reading on Medium »
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 12h ago
Why Statistics is Important in Data Science
Introduction: The Silent Foundation of Data Science Continue reading on Medium »
Does This Have AI in It Yet?
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 12h ago
Does This Have AI in It Yet?
Building an AI-friendly system sometimes doesn’t need some brand-new skill. It needs the old data discipline you already have. Continue reading on Medium »
How Wisconsin Used Foxes And Deer To Revamp Science Education
Forbes Innovation 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 14h ago
How Wisconsin Used Foxes And Deer To Revamp Science Education
Public input identifying over 100 million trail cameras photos of Wisconsin’s animals has transformed science education and state wildlife management.
Python for Data Science — Probability Basics for Data Science
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 16h ago
Python for Data Science — Probability Basics for Data Science
So far in this Part, we’ve focused on describing data using statistics such as: Continue reading on Medium »
Python for Data Science — Probability Basics for Data Science
Medium · Python 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 16h ago
Python for Data Science — Probability Basics for Data Science
So far in this Part, we’ve focused on describing data using statistics such as: Continue reading on Medium »
The Survivorship Bias in Your Funnel Data: Why Drop-Off Analysis Misses the Point
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 17h ago
The Survivorship Bias in Your Funnel Data: Why Drop-Off Analysis Misses the Point
You study users who entered the funnel but ignore those who never started, creating systematically wrong conclusions about where to invest… Continue reading on
I Gave OpenCode Access to the Entire US Economy. It Took One Skill File
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 17h ago
I Gave OpenCode Access to the Entire US Economy. It Took One Skill File
FRED is a free public economic data platform run by the St. Louis Fed, with hundreds of thousands of time series covering a wide range of… Continue reading on M
The Attention Economy: Your Attention Is Worth More Than Gold
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 18h ago
The Attention Economy: Your Attention Is Worth More Than Gold
The Algorithmic Mining of Human Focus Continue reading on Medium »
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 18h ago
What I Learned Building a Tableau Dashboard for Deloitte’s Data Analytics Simulation
A hands-on look at machine downtime, pay equity, and why “talk to the data” is harder than it sounds. Continue reading on Medium »
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 18h ago
Six Months, 9,541 Restaurant Development Records, and What the Data Actually Says
Every six months we stop producing data long enough to study it. Continue reading on Medium »
CRM Analitiği ile Müşteri Değerini Anlamak: RFM, CLTV ve Predictive CLTV Rehberi
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 18h ago
CRM Analitiği ile Müşteri Değerini Anlamak: RFM, CLTV ve Predictive CLTV Rehberi
Veri bilimi yalnızca model kurmak, grafik çizmek veya kod yazmaktan ibaret değildir. Continue reading on Medium »
O que as startups ensinam sobre Marketing Analytics
Medium · Startup 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 19h ago
O que as startups ensinam sobre Marketing Analytics
Descubra por que entender o modelo de negócio é o primeiro passo para transformar dados em decisões estratégicas. Continue reading on Medium »
Norway vs France (1:4) — A 97% Crime Index Anomaly: When Ruthless Efficiency Buries the xG Evidence
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 20h ago
Norway vs France (1:4) — A 97% Crime Index Anomaly: When Ruthless Efficiency Buries the xG Evidence
A statistical deep-dive into how France pulled off a full-blown scoreboard heist despite losing the underlying chance-quality case to… Continue reading on Mediu
Web Scraping: What It Is, Why It Matters, and How to Use It Responsibly
Medium · Python 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 23h ago
Web Scraping: What It Is, Why It Matters, and How to Use It Responsibly
A practical guide to web scraping: how it works, why businesses use it, where it becomes difficult, and how to approach it responsibly. Continue reading on Medi
Müşteri Değerini Anlamak: RFM, CLTV ve Tahmine Dayalı CRM Analitiği
Medium · Machine Learning 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1d ago
Müşteri Değerini Anlamak: RFM, CLTV ve Tahmine Dayalı CRM Analitiği
Veri analizi projelerinde çoğu zaman “ne oldu?” sorusuna cevap ararız. Continue reading on Medium »
Müşteri Değerini Anlamak: RFM, CLTV ve Tahmine Dayalı CRM Analitiği
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1d ago
Müşteri Değerini Anlamak: RFM, CLTV ve Tahmine Dayalı CRM Analitiği
Veri analizi projelerinde çoğu zaman “ne oldu?” sorusuna cevap ararız. Continue reading on Medium »
Müşteri Değerini Anlamak: RFM, CLTV ve Tahmine Dayalı CRM Analitiği
Medium · Python 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1d ago
Müşteri Değerini Anlamak: RFM, CLTV ve Tahmine Dayalı CRM Analitiği
Veri analizi projelerinde çoğu zaman “ne oldu?” sorusuna cevap ararız. Continue reading on Medium »
Verinin Müşteriyle Buluştuğu Nokta: CRM Analitiği ve Müşteri Yaşam Boyu Değeri (Bölüm 1)
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1d ago
Verinin Müşteriyle Buluştuğu Nokta: CRM Analitiği ve Müşteri Yaşam Boyu Değeri (Bölüm 1)
Günümüz iş dünyasında en çok duyduğumuz cümlelerden biri şudur: “Yeni bir müşteri edinmek, var olan müşteriyi elde tutmaktan çok daha… Continue reading on Mediu
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1d ago
Top 5 DBMS Concepts (2026) | Perfectnotes
Every single application you use — from Instagram to your online banking portal — runs on data. Continue reading on Medium »
The Nervous System of the Telco: Unlocking the Real-Time Power of the Network Element Interfaces…
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1d ago
The Nervous System of the Telco: Unlocking the Real-Time Power of the Network Element Interfaces…
Imagine a human body trying to survive when: Continue reading on Medium »
Enhanced RFM Analysis for Customer Segmentation using K-Prototypes
Medium · Machine Learning 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1d ago
Enhanced RFM Analysis for Customer Segmentation using K-Prototypes
In the previous article, we performed basic RFM Analysis using K-Means. However, customer behaviour is not limited to spending activity… Continue reading on Med
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1d ago
One Survey Asked Rich People Ten Times More Often Than Poor People.
You ran a survey, but it was lopsided: for every poor person you reached, you reached ten rich people. Continue reading on Medium »
Data Cleaning Fundamentals: Building a Reproducible Data Cleaning Pipeline
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1d ago
Data Cleaning Fundamentals: Building a Reproducible Data Cleaning Pipeline
A Practical Framework for Transforming Raw Data into Analysis-Ready Datasets Continue reading on Medium »
Data Cleaning Fundamentals: Building a Reproducible Data Cleaning Pipeline
Medium · Python 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1d ago
Data Cleaning Fundamentals: Building a Reproducible Data Cleaning Pipeline
A Practical Framework for Transforming Raw Data into Analysis-Ready Datasets Continue reading on Medium »
Analysis on Customer Churn
Medium · Python 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1d ago
Analysis on Customer Churn
1. Business Problem Worth Solving Continue reading on Medium »
Beyond the Credit Score: What 1.3 Million Loans Reveal About Who Actually Repays
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1d ago
Beyond the Credit Score: What 1.3 Million Loans Reveal About Who Actually Repays
Three projects on real lending data, and what they say about a fairer, sharper way to decide who gets a loan. Continue reading on Medium »
I Spent 3 Months Using Extended Thinking in Production. Here’s When It Actually Helps.
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1d ago
I Spent 3 Months Using Extended Thinking in Production. Here’s When It Actually Helps.
Where adaptive thinking earns its token cost, and the task types where more thinking quietly makes things worse. Continue reading on Data Science Collective »
I Spent 3 Months Using Extended Thinking in Production. Here’s When It Actually Helps.
Medium · LLM 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1d ago
I Spent 3 Months Using Extended Thinking in Production. Here’s When It Actually Helps.
Where adaptive thinking earns its token cost, and the task types where more thinking quietly makes things worse. Continue reading on Data Science Collective »
It’s Not the Cow, It’s the How: What 60 Years of Food Data Say About the Climate Cost of Dinner
Medium · Machine Learning 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1d ago
It’s Not the Cow, It’s the How: What 60 Years of Food Data Say About the Climate Cost of Dinner
I wanted to understand how much what we eat really costs the planet. I didn’t reach for a hot take; I reached for the data. Three projects… Continue reading on
It’s Not the Cow, It’s the How: What 60 Years of Food Data Say About the Climate Cost of Dinner
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1d ago
It’s Not the Cow, It’s the How: What 60 Years of Food Data Say About the Climate Cost of Dinner
I wanted to understand how much what we eat really costs the planet. I didn’t reach for a hot take; I reached for the data. Three projects… Continue reading on
Medium · Python 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 2d ago
Day 1 of My Data Science Journey: Building the Foundation
Today marks the beginning of my six‑month Data Science internship. For me, this isn’t just another training program — it’s the start of a… Continue reading on M
The Skill That Separates Senior Data Scientists From Everyone Else
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 2d ago
The Skill That Separates Senior Data Scientists From Everyone Else
Sebastian Wernicke on communication, stakeholder resistance, and why data alone rarely changes minds. Continue reading on Medium »
The Biotech Translation Gap: Where Clinical Success, Capital, and Unmet Need Diverge
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 2d ago
The Biotech Translation Gap: Where Clinical Success, Capital, and Unmet Need Diverge
The biotech market is often described as one long funnel: science enters at one end, clinical trials test whether it works, investors fund… Continue reading on
What Will It Cost America To Meet Data Center Electricity Demand?
Forbes Innovation 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 2d ago
What Will It Cost America To Meet Data Center Electricity Demand?
Meeting data center electricity demand with fossil fuels will add $30 billion to annual electricity costs. Clean energy will cost $5 billion less.
The AI Revolution That Won’t Fire Your Data Analysts
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 2d ago
The AI Revolution That Won’t Fire Your Data Analysts
Photo by path digital on Unsplash Continue reading on Medium »
Medium · Python 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 2d ago
Data Quality & dbt : Automatiser la gouvernance avec Python (Partie 2/5)
 Série : Data Quality Engineering à l’échelle . Partie 1 : Le Framework (De la théorie au code dbt) — lien ici . Partie 2 : L’Ingénierie… Continue reading on M
Alteryx to Python Migration: I Built an Open-Source Package to Replace Alteryx
Medium · Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 2d ago
Alteryx to Python Migration: I Built an Open-Source Package to Replace Alteryx
How PyTeryx lets you migrate from Alteryx Designer to Pandas without losing your mind Continue reading on Medium »