The Story about Ping

There’s a really great review of The Story About Ping on Amazon:

Ping! I love that duck!, January 26, 2000 Reviewer: John E. Fracisco

PING! The magic duck!

Using deft allegory, the authors have provided an insightful and intuitive explanation of one of Unix’s most venerable networking utilities. Even more stunning is that they were clearly working with a very early beta of the program, as their book first appeared in 1933, years (decades!) before the operating system and network infrastructure were finalized.