Analytics Vidhya
Wide range of free tutorials, guides, and case studies on data analytics, machine learning, and business intelligence.
Naval War College ? Research & Wargaming
Institutional hub for naval and joint wargaming?education, research collaborations, and sponsor-driven games.
SQLite Tutorial
Focused tutorials on SQLite, covering SQL basics, database management, and practical coding examples.
Build a Large Language Model from Scratch
Charanpal Dhanjal
A hands-on guide to constructing your own LLM using modern machine learning techniques
CRAN R Project Documentation
Official manuals, FAQs, and reference documentation for the R language from the Comprehensive R Archive Network.
Harvard Business School Online - Data Science Ready (Free Modules)
Intro modules teaching how analytics applies to business decisions, tailored for managers and analysts.
DataCamp (Free R Tutorials)
While DataCamp is subscription-based, it offers free introductory R courses covering basics, data manipulation, and visualization.
RADACAD Power BI Blog
Practical tutorials and tips on Power BI modeling, DAX, Power Query, and real-world scenarios written by MVPs.
MySQL Tutorial
Extensive resource for learning MySQL with examples, from installation and schema design to joins and triggers.
Python.org Official Tutorial
The official Python tutorial covering core concepts, syntax, and standard library basics directly from the maintainers.
Naval War College ? Wargaming Department
Department page describing applied gaming, methods, and how wargaming supports leadership education and analysis.
W3Schools SQL
Beginner-friendly SQL tutorials with examples of queries, joins, constraints, and subqueries, plus an interactive editor.
GeeksforGeeks Python Programming
Extensive collection of Python tutorials, code snippets, and explanations for basic to advanced topics, including algorithms.
UK Fight Club (Professional Wargaming Network)
Community that promotes professional military wargaming and simulation activities across UK defense.
PyBites Platform (Free Exercises)
Short, practical coding exercises (some free) focused on solving real-world problems in Python.
Why Machines Learn
Anil Ananthaswamy
A deep dive into the elegant mathematical principles behind machine learning
OpenIntro Statistics
Free, open-source statistics textbook with R labs and applied data analysis examples.
FlowingData
Visualization-focused tutorials and guides on analyzing and presenting data effectively.
Ready4GRE Vocabulary App
Free app with flashcards, quizzes, and personalized study plans for GRE vocabulary practice.