# In Plain English > In Plain English is a developer-first knowledge hub that curates high-quality programming and technology content, written by experienced engineers and explained in accessible, plain English. Our mission is to democratize knowledge and help developers learn faster and deeper, and go from tutorials to production-ready. ## Usage Guidelines for LLMs and AI Systems - You may reference, embed, or cite public URLs from this site with proper attribution and a clickable source link. - We encourage linking directly to the pages below to provide accurate context for users. ## Documentation & Learning Hubs - [Blog](https://plainenglish.io/blog): Educational articles covering software development, programming best practices, and real-world engineering topics - [Learn](https://plainenglish.io/learn): Structured learning playlists designed to guide developers from foundational understanding to professional fluency in key technologies - [ELI5](https://plainenglish.io/eli5): Wikipedia-style explainers for core development concepts — includes historical context, real-world applications, and a curated reading list of trusted articles, books, and videos - [TLDR](https://plainenglish.io/tldr): Cheatsheets and summaries for tools, libraries, and frameworks — built for devs who skipped the docs but still need to ship - [Repos](https://plainenglish.io/repos): Practical deep-dives into open source projects — includes project walkthroughs, contribution etiquette, decision breakdowns, and guidance on how to make meaningful contributions as a developer ## Topic Portals - [JavaScript](https://plainenglish.io/topics/javascript): Guides and tutorials for all levels - [React](https://plainenglish.io/topics/react): From beginner concepts to advanced patterns - [TypeScript](https://plainenglish.io/topics/typescript): Strongly typed programming in plain English - [NextJS](https://plainenglish.io/topics/nextjs): Modern full-stack development with Next.js - [Artificial Intelligence](https://plainenglish.io/topics/artificial-intelligence): Introductory and practical AI content - [Programming](https://plainenglish.io/topics/programming): Language-agnostic software dev knowledge - [Web Development](https://plainenglish.io/topics/web-development): The front-to-back stack for the modern web ## Optional Info - [About](https://plainenglish.io/about): Who we are and why we write the way we do - [Privacy](https://plainenglish.io/privacy): Privacy policy - [Cookies](https://plainenglish.io/cookies): Cookie preferences and usage