Your Gateway to Packet Radio by Stan Horzepa, WA1LOU

A book about packet radio for amateurs. I'm not sure how current it is, because it was first published in 1989, with a second edition in 1992. The age of the book is no better indicated than by the picture of a IBM PC-XT on the cover. I was surprised to find a section on TCP/IP.

I don't know enough about the subject to judge this book, but I did find it a revealing introduction. If nothing else, it gave me a grounding in the history of radio amateur packet radio.