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Featured Guides
Curated starting points for practical learning and skill-building.
Create Your Own Everyday Tools with AI
Create useful apps you can keep, customize, and run on your own computer. No programming required.
Essential Math: Build a Strong Foundation
Understand the math behind everyday problems and prepare for more advanced learning.
Developing with Python & AI
Build useful software with clear thinking and AI-assisted workflows.
Become a Developer with Python
Learn to think and build like a developer using Python
SQL & Databases: Learn How Real Applications Store and Use Data
Build a relational database from first table to secure application use.
Build a Complete Business Application with PHP & MySQL
Create Dynamic Web Apps with Data, Users, and Workflows
Popular Guides
Guides currently highlighted as popular or bestselling.
Create Your Own Everyday Tools with AI
Create useful apps you can keep, customize, and run on your own computer. No programming required.
Essential Math: Build a Strong Foundation
Understand the math behind everyday problems and prepare for more advanced learning.
Become a Developer with Python
Learn to think and build like a developer using Python
Build a Complete Business Application with PHP & MySQL
Create Dynamic Web Apps with Data, Users, and Workflows
Negotiation for Everyday Work and Business
Prepare well, negotiate with confidence, understand the deal, and know when to walk away.
Build Your First Professional Web Page with AI
Learn HTML and CSS by Creating a Real Homepage
Recently Updated
Fresh and recently improved guides from the One Red Chair library.
Create Your Own Everyday Tools with AI
Create useful apps you can keep, customize, and run on your own computer. No programming required.
Statistics Made Clear
Make sense of data, see what the numbers are telling you, and learn how much confidence to place in an answer.
Math That Finally Makes Sense: A Visual Start
See how numbers, shapes, and equations work—and build confidence with math one small step at a time.
Linear Algebra: Understanding Vectors, Matrices, and Transformations
See what the symbols mean, solve connected problems, and discover the math behind graphics, physics, and AI.
Calculus Made Clear: From Your First Limit to Integrals
Go beyond memorizing formulas and discover how calculus helps you solve problems that once seemed out of reach.
Trigonometry & Precalculus: A Step-by-Step Guide
Start with familiar algebra and build your understanding of trigonometry and precalculus, one idea at a time.
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