PostgreSQL Tutorial

Free tutorials covering PostgreSQL features, SQL basics, stored procedures, and advanced database functions.

UC Berkeley Data 8 (Foundations of Data Science)

Introductory data science/analytics course using Python; includes lectures, labs, and exercises for free online.

Harvard Business School Online - Data Science Ready (Free Modules)

Intro modules teaching how analytics applies to business decisions, tailored for managers and analysts.

edX - Data Analysis for Life Sciences

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

Kaggle Learn R

Hands-on mini-courses for R programming, data visualization, and machine learning with interactive notebooks in the browser.

Ready4GRE Vocabulary App

Free app with flashcards, quizzes, and personalized study plans for GRE vocabulary practice.

MySQL Tutorial

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

King?s Wargaming Network

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

Automate the Boring Stuff with Python

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

Kaplan GRE Free Resources

Free practice tests, sample questions, and study materials from Kaplan.

Python.org Official Tutorial

The official Python tutorial covering core concepts, syntax, and standard library basics directly from the maintainers.

Springboard Data Analytics Curriculum (Free Prep)

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

Mode SQL Tutorial

Practical SQL lessons taught in-browser, with real-world datasets and instant feedback for analysts.

CRAN R Project Documentation

Official manuals, FAQs, and reference documentation for the R language from the Comprehensive R Archive Network.

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.

Marine Corps Warfighting Lab ? Wargaming Division

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

Power BI Guided Learning (Microsoft)

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

Why Machines Learn

Anil Ananthaswamy

A deep dive into the elegant mathematical principles behind machine learning

GeeksforGeeks Python Programming

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

CrunchPrep GRE Blog

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