The Coming Wave
Mustafa Suleyman
A visionary look at how emerging technologies will reshape the 21st century
FreeCodeCamp - Data Analysis with Python
Full curriculum teaching Python for data analysis, including Pandas, NumPy, data cleaning, and visualization, with projects.
PostgreSQL Tutorial
Free tutorials covering PostgreSQL features, SQL basics, stored procedures, and advanced database functions.
CS50?s Introduction to Python
Harvard?s free course introducing programming using Python, with video lectures, notes, and problem sets.
R-Bloggers
Aggregator of hundreds of blogs covering R tutorials, packages, and real-world data science applications.
Tableau Public Resources
Free resources and tutorials for using Tableau to create interactive visualizations and dashboards.
LearnPython.org
Interactive, browser-based Python tutorials ranging from basic syntax to advanced modules.
ModernDive: Statistical Inference via Data Science
Free online textbook teaching statistical inference and regression using R and tidyverse methods.
Stack Overflow - R Tag
A huge developer community answering detailed questions about R, packages, and applied statistics.
W3Schools SQL
Beginner-friendly SQL tutorials with examples of queries, joins, constraints, and subqueries, plus an interactive editor.
OpenLearn - Learn to Code for Data Analysis
Free Open University course introducing Python programming in the context of data analysis.
King?s Wargaming Network
Academic network advancing theory and application of wargaming for research and teaching within Security Studies.
MOOC.fi - Introduction to Data Analysis with Python
Free course from University of Helsinki teaching data analysis workflows with Python and Pandas.
MySQL Tutorial
Extensive resource for learning MySQL with examples, from installation and schema design to joins and triggers.
Google Data Analytics Certificate (Audit Free)
Comprehensive beginner-to-intermediate program covering spreadsheets, SQL, R, visualization, and analytics workflows; free in audit mode.
Test Guide - GRE Practice
Large collection of free online GRE practice tests and section-specific drills.
OpenStax Mathematics
Peer-reviewed, openly licensed textbooks covering college algebra, calculus, and statistics; downloadable for free in PDF or web format.
Power BI Guided Learning (Microsoft)
Step-by-step tutorials directly from Microsoft, teaching data connection, modeling, visualization, and publishing dashboards.
Programiz Python
Beginner-friendly tutorials covering Python basics, data structures, object-oriented programming, and standard libraries.