The radare2 quick reference: flags, a modular copy-paste cheat sheet, and a worked breakdown of every real situation. Load and analyze a binary, list functions, strings, and imports, disassemble main, read control flow in graph mode, patch a jump, debug under breakpoints, diff two builds, and script it with r2pipe.
A practical pwntools guide: install it, wire up process and remote I/O, pack and unpack values, build ROP helpers, read the output honestly, and keep a cheat sheet you will actually reuse.
The exiftool quick reference: flags, a modular copy-paste cheat sheet, and a worked breakdown of every real situation. Dump every tag, pull GPS as decimal, surface hidden CTF fields, extract the embedded thumbnail, strip metadata before publishing, shift wrong timestamps, and batch a folder to CSV.
The Binwalk quick reference: flags, a modular copy-paste cheat sheet, and a worked breakdown of every real situation. Map firmware with a signature scan, extract nested layers recursively, carve a byte range with dd, read entropy for compression vs encryption, filter to just the filesystem, and identify a raw blob's CPU architecture.