Study Notebooks
Topics explained in depth — written out like a student's hand-made notes. Pick a category to see its courses.
11 notebooks
Backend
Servers, data & large-scale system design.
System DesignDatabases 101Database Design+8 more
Browse Backend9 notebooks
Frontend
Browsers, UI state & web performance.
Frontend EssentialsModern JavaScript (Deep Dive)TypeScript (Deep Dive)+6 more
Browse Frontend12 notebooks
DevOps / CI
Shipping software fast & safely.
Observability & MonitoringGit & Version Control MasteryLinux & Shell Scripting+9 more
Browse DevOps / CI7 notebooks
Security
Protecting apps, data & users.
Cryptography FundamentalsOWASP Top 10 Deep DiveNetwork Security+4 more
Browse Security1 notebook
Network
How machines connect and talk.
Networking Essentials
Browse Network