IHHS
IHHS Study Guide Hub
About

A study tool that actually helps

“The greatest lives are the ones willing to be forgotten so something else can be remembered.”

The IHHS Study Guide Hub is a free, open-source, ad-free library of deep-dive study guides, built by an IHHS student for IHHS students. Accounts are optional. Every guide is structured the way memory actually works: learning objectives first, then the core concepts, then worked examples, then active recall through quizzes and flashcards.

Classmates who have used the guides and vouch for them include Owin Abeysinghe, Sayan Bhandari, Kai Mcparlane, Ethan Periera, Colin Nielson, and Oliver Netherwood. Work through a guide properly and the test tends to take care of itself. If it still doesn't, that one is a skill issue.

Promises

  1. The site will never cost money and will never carry ads.
  2. Your information is never sold or shared. The privacy page spells out exactly what is stored and where.
  3. Nothing is held back. Every guide uses the most effective tools available for learning, not a watered-down version of them.
  4. Good ideas get built. Suggest something sensible and there is a good chance it ends up on the site.
  5. The project is non-profit and fully open source, and it will stay that way. The code lives on GitHub.

What every guide includes

  • Learning objectives, so you know what mastery looks like before you start
  • A glossary of every term you will meet
  • Core concepts in sections, each with worked examples
  • Diagrams, maps, and equations rendered properly, many of them interactive
  • Practice questions with collapsible answers
  • A self-quiz with instant explanations
  • A flashcard deck with shuffle and progress tracking
  • Mnemonics, common pitfalls, and a one-page cheat sheet

How to use it

  1. Browse the library, or search from anywhere with ⌘K / Ctrl K
  2. Read the guide end to end
  3. Take the self-quiz and read the explanations for anything you missed
  4. Drill the flashcards until they feel effortless
  5. Print the cheat sheet for the night before

How to contribute

Found a mistake? Want to write a guide for a class that doesn't have one yet? Talk to the maintainer directly. Guides are plain markdown files, so anyone who can write a Google Doc can write one.