[vector_spaces]

I remember reading the ZeroMQ docs when I was first learning about concurrency. Those plus Joe Armstrong's Programming Erlang book were really fun and eye opening.

I never used ZeroMQ much but it taught me a lot of the language around distributed and high-concurrency systems and problems that come up.

[michael_j_ward]

Do you have an opinion on which to read first?

[dopplerac]

Not OP but if you're on the edge, try reading the first few chapters of the ZeroMQ guide. It does not make a lot of assumptions about the reader's background in computing.