OpenIntro Statistics
Free, open-source statistics textbook with R labs and applied data analysis examples.
Swirl: Learn R in R
An interactive R package that teaches R programming and data science concepts directly inside the R console.
Khan Academy - Advanced Math
Free structured lessons with videos and practice exercises covering algebra, calculus, statistics, linear algebra, and differential equations.
Microsoft Learn ? Power BI
Official Microsoft Learn platform with guided, hands-on modules for Power BI, covering everything from basics to advanced analytics.
EDX ? Analyzing and Visualizing Data with Power BI (Audit Free)
University of Illinois & Microsoft course teaching Power BI for analytics and reporting, free in audit mode.
Kaggle Learn R
Hands-on mini-courses for R programming, data visualization, and machine learning with interactive notebooks in the browser.
SQL Shack ? Power BI
Collection of practical Power BI tutorials and tips, especially useful for SQL Server professionals integrating BI dashboards.
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.
R for Data Science (Hadley Wickham & Garrett Grolemund)
A free online book teaching R through the tidyverse approach, covering data wrangling, visualization, and modeling.
Project Euler
Hundreds of challenging computational math problems that build problem-solving and programming skills.
Marine Corps Warfighting Lab ? Wargaming Division
USMC wargaming division supporting concept development and force design through iterative gaming and analysis.
Analytics Vidhya
Wide range of free tutorials, guides, and case studies on data analytics, machine learning, and business intelligence.
CRAN R Project Documentation
Official manuals, FAQs, and reference documentation for the R language from the Comprehensive R Archive Network.
SQLite Tutorial
Focused tutorials on SQLite, covering SQL basics, database management, and practical coding examples.
GeeksforGeeks Python Programming
Extensive collection of Python tutorials, code snippets, and explanations for basic to advanced topics, including algorithms.
Kaggle Learn - Data Analysis
Hands-on mini-courses for Python, R, SQL, and visualization with Jupyter notebooks that run directly in the browser.
King?s Wargaming Network
Academic network advancing theory and application of wargaming for research and teaching within Security Studies.
Connections Wargaming Conference
Annual international conference linking defense, industry, and academia to advance professional wargaming practice.