RAND ? Wargaming

Overview of RAND?s analytic wargaming practice, including tabletop, seminar, and computer-supported games used for research and decision support.

Mode Analytics SQL & Analytics Tutorials

Hands-on tutorials that blend SQL queries with practical data analysis tasks for business analysts.

PAXsims (Conflict Simulation & Wargaming)

Long-running blog on serious games and wargaming for policy, education, and analysis with news, methods, and reviews.

CS50?s Introduction to Python

Harvard?s free course introducing programming using Python, with video lectures, notes, and problem sets.

MySQL Tutorial

Extensive resource for learning MySQL with examples, from installation and schema design to joins and triggers.

R for Data Science (Hadley Wickham & Garrett Grolemund)

A free online book teaching R through the tidyverse approach, covering data wrangling, visualization, and modeling.

Guy in a Cube (YouTube)

Popular YouTube channel run by Microsoft employees, offering weekly tutorials, best practices, and troubleshooting tips for Power BI.

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.

Analytics Vidhya

Wide range of free tutorials, guides, and case studies on data analytics, machine learning, and business intelligence.

Springboard Data Analytics Curriculum (Free Prep)

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

StatQuest with Josh Starmer (YouTube)

Clear and approachable explanations of statistics and data analysis, breaking down complex concepts into simple steps.

CrunchPrep GRE Blog

Guides and strategies for GRE preparation including word lists, essay templates, and quantitative shortcuts.

Power BI Guided Learning (Microsoft)

Step-by-step tutorials directly from Microsoft, teaching data connection, modeling, visualization, and publishing dashboards.

GeeksforGeeks Python Programming

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

edX

edX is an American massive open online course provider created by Harvard and MIT. It hosts online university-level courses in a wide range of disciplines to a worldwide student body, including some courses at no charge.

W3Schools Python

Step-by-step interactive lessons for Python basics, data structures, and functions, with hands-on coding snippets.

Build a Large Language Model from Scratch

Charanpal Dhanjal

A hands-on guide to constructing your own LLM using modern machine learning techniques

SQLBI

Extensive library of free articles, guides, and videos on DAX, data modeling, and BI concepts by expert consultants Alberto Ferrari and Marco Russo.

Microsoft Learn - Data Analysis

Free learning paths covering data analysis basics and Power BI dashboards directly from Microsoft.

PyBites Platform (Free Exercises)

Short, practical coding exercises (some free) focused on solving real-world problems in Python.