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Learning links
10 September 2025
Data Analytics
Kaggle Learn - Data Analysis

Hands-on mini-courses for Python, R, SQL, and visualization with Jupyter notebooks that run directly in the browser.

GRE Prep
Magoosh GRE Blog

Hundreds of free articles, study guides, vocabulary lists, and strategies for GRE verbal, quant, and writing.

Data Analytics
Springboard Data Analytics Curriculum (Free Prep)

Introductory lessons and exercises to build foundation skills in Excel, SQL, and data storytelling.

Wargaming
King?s Wargaming Network

Academic network advancing theory and application of wargaming for research and teaching within Security Studies.

Data Analytics
Tableau Public Resources

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

Data Analytics
edX - Data Analysis for Life Sciences

Harvard's free online courses teaching statistics, inference, modeling, and machine learning in the context of data science.

Python
Automate the Boring Stuff with Python

A free online book teaching Python through practical examples like automating tasks, web scraping, and file management.

GRE Prep
Princeton Review GRE Practice

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

Python
GeeksforGeeks Python Programming

Extensive collection of Python tutorials, code snippets, and explanations for basic to advanced topics, including algorithms.

Data Analytics
The Carpentries - Data Carpentry

Community-driven lessons for researchers covering data organization, cleaning, visualization, and analysis in R, Python, and SQL.

GRE Prep
GregMat (YouTube)

Popular YouTube channel with hundreds of free GRE quant and verbal walkthroughs, strategies, and practice problem explanations.

Wargaming
Connections Wargaming Conference

Annual international conference linking defense, industry, and academia to advance professional wargaming practice.

R
Stack Overflow - R Tag

A huge developer community answering detailed questions about R, packages, and applied statistics.

Books
Nexus: A Brief History of Information Networks

Brian Christian

A sweeping narrative on the evolution and impact of global information networks

Math
Khan Academy - Advanced Math

Free structured lessons with videos and practice exercises covering algebra, calculus, statistics, linear algebra, and differential equations.

Books
Designing Machine Learning Systems

Chip Huyen

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

Wargaming
Marine Corps Warfighting Lab ? Wargaming Division

USMC wargaming division supporting concept development and force design through iterative gaming and analysis.

Databases & SQL
SQLZoo

Hands-on SQL practice with guided problems, quizzes, and interactive database queries to reinforce concepts.

Books
The Coming Wave

Mustafa Suleyman

A visionary look at how emerging technologies will reshape the 21st century

Math
Art of Problem Solving (AoPS) Online Resources

Challenging problems, explanations, and articles designed for advanced high school and college-level students interested in problem solving and Olympiad-style math.