''Smalltalk 80: The Interactive Programming Environment'' by AdeleGoldberg.. ISBN 0-201-11372-4. Now out of print, see if you can find one on the web. See SmalltalkTheInteractiveProgrammingEnvironment ---- Other: Books including OrangeBook * Coloured Book Protocols - (1980-1992) ** The Orange Book defined protocols for transport over local networks using the Cambridge Ring *** http://en.wikipedia.org/wiki/Coloured_Book_protocols ---- CategoryBook