Own a piece of Unix history. These two books come from a prestigious R&D center, and define and describe Unix.
These are:AT&T Bell Laboratories Technical Journal Oct 1984 Vol 63 No 8 Pt 2 UNIX System and the  Sun Microsystems Technical report on Unix.
The first book was the first public introduction and description by the researchers at AT&T/Bell Labs. The second was the introduction of the first commercially successful Unix workstation.

The authors include Aho, Richie, Pike, Kernigan, Morris. Stroustrup, and many more very famous computer scientists
Contents include


As you can see, this is a who's who list of authors and topics, and these articals shaped OS development for decades.

The second volume is Sun Microsystems Technical Report on UNIX. This was a description of the first commercially successful Unix workstation. It covers the history, philosophy, architecture, organization, the graphic user interface and an introduction to the Unix shell and basic commands.

Any computer historian would love to own these two books. The Sun report, for instances, explains the true reason and the terrible pun used to come up with the phrase "UNIX".

Both these books are in good condition. Both have the owner's name written on them. The Sun report has some bending of the pages as ahown.