[smolsky]

It's difficult to find a succinct overview. Here is a slide deck buried among links: http://www.capstone-engine.org/BHUSA2014-capstone.pdf

[tptacek]

Capstone is sort of an "industry standard" open source multi-architectural disassembler library, especially for security tooling.

This is a useful page to get a sense of what it's about (ie, what you're getting out of it vs. something more like objdump):

https://www.capstone-engine.org/beyond_llvm.html