Which is your favorite 70-80s computer book?

or should I say 8 bit book?. While reading the "Programmers don't read books" thread just come to my mind those really nice days where computer books where an extremely useful source of information. One of my favourites mentioned in the thread was: BASIC Computer games by David Ahl

Which book was your favourite?

The Ahl was a classic-- I had the DEC edition-- but I also have fond memories of Adam Osborne's "Introduction to Microcomputers".

Two books if that's permitted:

1. "Smalltalk-80 The Languange and its Implementation" - They eventually dropped the implementation chapters from the book, but you can still get the original edition used on Amazon if you're curious as to how Smalltalk was implemented (http://www.amazon.com/gp/offer-listing/0201113716/ref=dp_olp...). I'm surprised at how cheap they are, as the book is considered a collector's item.

2. "Computer Lib" by Ted Nelson (http://www.digibarn.com/collections/books/computer-lib/)

And, as a bonus, the TRS-80 Model I Users Manual. I still remember the first "program" the book taught me:

10 PRINT "HEY MA, IT WORKS!"

20 END

I'm too young to play... :(

Amiga hardware reference manual (Addison Wesley), BYTE magazines, Norton's guide to 8086 assembly language