Turn YouTube Playlists into Interactive Books.
Instead of re-watching hours of scattered videos to revise a concept, read structured digital chapters, AI summaries, and code notes with embedded video players.
Featured Interactive Books

Spring Boot Full Course 2026
By Coder Army
Complete Spring 7 & Spring Boot 4 course from beginner to Advance using first thought principle.

Psychology
By CrashCourse
In 40 episodes, Hank Green will teach you psychology! This course is based on the 2013 AP Psychology curriculum. By the end of the course, you will be able to: * Understand the biological basis of human behavior and perception * Explain standard models of thinking, learning, and emotions * Recognize rigorous psychological research methods, including ethical considerations * Identify cases of abnormal psychology and associated treatments * Apply psychological theories to social groups

System Design Playlist
By Gaurav Sen
Master the architectural blueprints of high-scale distributed systems. This comprehensive guide covers critical fundamentals from load balancing and consistent hashing to message queues, database sharding, and microservices. Through real-world case studies like Tinder, you will learn to design resilient, event-driven architectures, draft precise API contracts, perform capacity planning, and confidently ace your next system design interview.

Philosophy
By CrashCourse
Master the core frameworks of Western philosophy to dissect reality, ethics, and human nature. This comprehensive guide unpacks foundational epistemology, metaphysics, and moral theory while equipping you with the tools of formal logic and deductive reasoning. You will learn to deconstruct fallacies, critically evaluate modern ethical dilemmas, and articulate robust, principled arguments with precision.

Startup School
By Y Combinator
Master the foundational mechanics of company building with a rigorous curriculum designed for early-stage founders. Learn to secure your first customers, architect AI-native services, structure equity, and execute high-converting sales plays to scale from raw idea to sustainable enterprise.

Astronomy
By CrashCourse
Embark on an illuminating journey through the cosmos, starting from simple naked-eye observations and expanding outward to distant galaxies, black holes, and the Big Bang. Master core astrophysical concepts, stellar evolution, and the fundamental forces shaping our universe through a structured, university-level curriculum.

Backend From First Principles
By Sriniously
A set of videos where we explore backend systems from the most fundamental concepts.

World Mythology
By CrashCourse
Explore the foundational stories and cultural narratives that have shaped civilizations across the globe. This comprehensive guide examines creation myths, pantheons, tricksters, and heroic journeys, equipping you with the analytical tools to understand how ancient traditions continue to influence modern psychology, language, and human society.

System Design (LLD) Full Course
By Coder Army
Master low-level design (LLD) and write production-ready, scalable code. This comprehensive guide bridges the gap between object-oriented theory and practical implementation, covering SOLID principles, design patterns, and UML modeling. Through hands-on projects like building a notification engine and document editor, you will develop the clean-coding habits and architectural intuition needed to ace elite backend engineering interviews.

Forward Deployed Engineer (FDE) Full Course
By Coder Army
Master the high-impact discipline of forward deployed engineering by bridging the gap between cutting-edge generative AI and production systems. This language-agnostic guide demystifies core transformer architectures, attention mechanisms, and tokenization before advancing to real-world integration strategies. You will build the technical acumen required to deploy, customize, and deliver robust LLM applications directly into enterprise client environments.

AI Engineering Primer | From Basics to Advanced | 2026
By Saurav Prateek
Master production-grade artificial intelligence engineering by building autonomous agents, advanced workflows, and intelligent RAG systems from scratch. Learn to leverage LangChain, LangGraph, and modern LLMs to architect scalable, tool-enabled AI applications capable of complex reasoning and self-reflection.

Data Engineering Course: Complete Interview Preparation
By Mukul Raina
Created by Mukul Raina (Senior Software Engineer & Tech Lead at Microsoft, Oxford MSc), this course provides a comprehensive foundation for data engineering interviews covering the entire pipeline lifecycle. It starts with pipeline architecture (ETL vs ELT, CDC, event streams, idempotency, backfill strategies, reliability patterns with DLQs and checkpointing), then dives into batch processing (MapReduce, Spark architecture with Catalyst optimizer, DAG execution, partitioning, shuffle optimization, broadcast joins, file formats like Parquet/ORC/Avro, and Airflow orchestration), and stream processing (Kafka deep dive with topics/partitions/consumer groups, exactly-once semantics, windowing patterns, watermarks, stateful processing with Flink/Spark Streaming). The course also covers the batch vs streaming decision framework (Lambda vs Kappa architectures, micro-batching, latency-cost-complexity triangle) and data modeling patterns (OLTP vs OLAP, normalization/denormalization, Star and Snowflake schemas, fact tables, Slowly Changing Dimensions Type 2, Data Vault, grain design, materialized views)—equipping you with production-ready knowledge and interview-focused practice questions for FAANG-level data engineering roles.
Why read when you can watch? Why watch when you can do both?
A YouTube video gives you the explanation, but an interactive book gives you retention, instant reference, and searchable notes.
1. Video Becomes Chapter
Each video in a playlist is automatically organized as a sequential chapter in your book with embedded playback.
2. Markdown Notes & Code
Read high-yield summaries, key takeaways, diagrams, and runnable code blocks formatted with literary care.
3. Instant Search & Revision
Need to check how authentication worked? Search once and jump straight to the exact paragraph and timestamp.