RADACAD Power BI Blog
Practical tutorials and tips on Power BI modeling, DAX, Power Query, and real-world scenarios written by MVPs.
Naval War College ? Research & Wargaming
Institutional hub for naval and joint wargaming?education, research collaborations, and sponsor-driven games.
R for Data Science (Hadley Wickham & Garrett Grolemund)
A free online book teaching R through the tidyverse approach, covering data wrangling, visualization, and modeling.
ETS GRE Official Prep
Free official materials from ETS including practice questions, POWERPREP online practice tests, and test-taker tips.
The Coming Wave
Mustafa Suleyman
A visionary look at how emerging technologies will reshape the 21st century
R-Bloggers
Aggregator of hundreds of blogs covering R tutorials, packages, and real-world data science applications.
Guy in a Cube (YouTube)
Popular YouTube channel run by Microsoft employees, offering weekly tutorials, best practices, and troubleshooting tips for Power BI.
Kasper On BI
Blog by a Microsoft program manager sharing deep-dive explanations of Power BI features and integrations with Azure and Excel.
ModernDive: Statistical Inference via Data Science
Free online textbook teaching statistical inference and regression using R and tidyverse methods.
Marine Corps University Press ? Wargaming Topic
Curated publications on wargaming theory and practice relevant to military education and planning.
Magoosh GRE Blog
Hundreds of free articles, study guides, vocabulary lists, and strategies for GRE verbal, quant, and writing.
OpenStax Mathematics
Peer-reviewed, openly licensed textbooks covering college algebra, calculus, and statistics; downloadable for free in PDF or web format.
Analytics Vidhya
Wide range of free tutorials, guides, and case studies on data analytics, machine learning, and business intelligence.
Power BI Community
Official Power BI community forum where users can ask questions, share solutions, and browse a large knowledge base of solved problems.
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.
Google Data Analytics Certificate (Audit Free)
Comprehensive beginner-to-intermediate program covering spreadsheets, SQL, R, visualization, and analytics workflows; free in audit mode.
King?s Wargaming Network
Academic network advancing theory and application of wargaming for research and teaching within Security Studies.
Kaggle Learn Python
Hands-on mini-courses for Python and data science, with notebooks you can run in the browser for immediate practice.