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Learning links
10 September 2025
Data Analytics
Tableau Public Resources

Free resources and tutorials for using Tableau to create interactive visualizations and dashboards.

Books
Designing Machine Learning Systems

Chip Huyen

A practical blueprint for building production-ready ML systems with scalability and reliability

Books
Why Machines Learn

Anil Ananthaswamy

A deep dive into the elegant mathematical principles behind machine learning

Data Analytics
Microsoft Learn - Data Analysis

Free learning paths covering data analysis basics and Power BI dashboards directly from Microsoft.

Data Analytics
FlowingData

Visualization-focused tutorials and guides on analyzing and presenting data effectively.

Data Analytics
FreeCodeCamp - Data Analysis with Python

Full curriculum teaching Python for data analysis, including Pandas, NumPy, data cleaning, and visualization, with projects.

Books
Build a Large Language Model from Scratch

Charanpal Dhanjal

A hands-on guide to constructing your own LLM using modern machine learning techniques

GRE Prep
Princeton Review GRE Practice

Free practice test access, strategy sessions, and sample GRE questions.

Databases & SQL
LeetCode SQL Problems

Collection of SQL coding challenges to practice writing queries, often used in interview preparation.

R
R-Bloggers

Aggregator of hundreds of blogs covering R tutorials, packages, and real-world data science applications.

PowerBI
SQL Shack ? Power BI

Collection of practical Power BI tutorials and tips, especially useful for SQL Server professionals integrating BI dashboards.

GRE Prep
Ready4GRE Vocabulary App

Free app with flashcards, quizzes, and personalized study plans for GRE vocabulary practice.

Books
AI Engineering

Andrew Ng

A practical framework for building real-world AI applications from foundational principles

Math
Project Euler

Hundreds of challenging computational math problems that build problem-solving and programming skills.

Python
CS50?s Introduction to Python

Harvard?s free course introducing programming using Python, with video lectures, notes, and problem sets.

PowerBI
SQLBI

Extensive library of free articles, guides, and videos on DAX, data modeling, and BI concepts by expert consultants Alberto Ferrari and Marco Russo.

General Learning
MiT Open CourseWare

MIT OpenCourseWare offers free access to thousands of MIT course materials?lectures, assignments, and exams?covering subjects from engineering and computer science to economics and the humanities. It's open learning at its best, with no registration required.

Math
Coursera - Math for Machine Learning (Audit Free)

University of London courses on linear algebra, multivariate calculus, and statistics for machine learning, available free in audit mode.

GRE Prep
Manhattan Review Free GRE Resources

Free practice problems, diagnostic tests, and study tips from test prep experts.

General Learning
Coursera

Offers beginner-friendly courses from top institutions like IBM and Duke. You can audit many courses for free, including topics like Excel, SQL, Python, and data visualization.