By Andrew C. Greenberg, 1999; Andrew P. Black, 2001. Quick reference for Squeak user interface; helpful for Smalltalk generally. Text, many command tables, screenshots. http://www.mucow.com/squeak-qref.html
Tutorial. Text and code samples. Japanese, with many useful English words and links. By Masashi Umezawa, one of the translators to Japanese of Simon Lewis' The Art and Science of Smalltalk: Saku Saku Smalltalk. http://www.ogis-ri.co.jp/otc/hiroba/technical/Squeak/squeak.html
Series on object-oriented programming for users new to OO, or programming. Goal: introduce OO programming, and spread the fun of Smalltalking. Teaches Smalltalk generally by teaching Squeak. Text, code, screenshots. [Linux Gazette #51] http://www.linuxgazette.com/issue51/steffler.html