Kaggle Learn - Data Analysis
Hands-on mini-courses for Python, R, SQL, and visualization with Jupyter notebooks that run directly in the browser.
Magoosh GRE Blog
Hundreds of free articles, study guides, vocabulary lists, and strategies for GRE verbal, quant, and writing.
Springboard Data Analytics Curriculum (Free Prep)
Introductory lessons and exercises to build foundation skills in Excel, SQL, and data storytelling.
King?s Wargaming Network
Academic network advancing theory and application of wargaming for research and teaching within Security Studies.
Tableau Public Resources
Free resources and tutorials for using Tableau to create interactive visualizations and dashboards.
edX - Data Analysis for Life Sciences
Harvard's free online courses teaching statistics, inference, modeling, and machine learning in the context of data science.
Automate the Boring Stuff with Python
A free online book teaching Python through practical examples like automating tasks, web scraping, and file management.
Princeton Review GRE Practice
Free practice test access, strategy sessions, and sample GRE questions.
GeeksforGeeks Python Programming
Extensive collection of Python tutorials, code snippets, and explanations for basic to advanced topics, including algorithms.
The Carpentries - Data Carpentry
Community-driven lessons for researchers covering data organization, cleaning, visualization, and analysis in R, Python, and SQL.
GregMat (YouTube)
Popular YouTube channel with hundreds of free GRE quant and verbal walkthroughs, strategies, and practice problem explanations.
Connections Wargaming Conference
Annual international conference linking defense, industry, and academia to advance professional wargaming practice.
Stack Overflow - R Tag
A huge developer community answering detailed questions about R, packages, and applied statistics.
Nexus: A Brief History of Information Networks
Brian Christian
A sweeping narrative on the evolution and impact of global information networks
Khan Academy - Advanced Math
Free structured lessons with videos and practice exercises covering algebra, calculus, statistics, linear algebra, and differential equations.
Designing Machine Learning Systems
Chip Huyen
A practical blueprint for building production-ready ML systems with scalability and reliability
Marine Corps Warfighting Lab ? Wargaming Division
USMC wargaming division supporting concept development and force design through iterative gaming and analysis.
The Coming Wave
Mustafa Suleyman
A visionary look at how emerging technologies will reshape the 21st century
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.