If you are learning Smalltalk, the Cuis Documentation Project can help you. The “Terse Guide” to install directly from the environment is useful both as a guide and a reference (in Cuis World Menu Help>Terse Guide to Cuis).

Resources

The Cuis Book

A book about Cuis Smalltalk. A community effort to bring documentation to people new to Smalltalk and even computer programming.
read more

Wiki

A wiki with technical information and notes about Cuis-Smalltalk.
read more

UI tour

The user interface enables you to access most of the code and to conduct Smalltalk experiments on your own. You can review its features in the Quick UI Tour.
read more

Videos

Video series at the Cuis Smalltalk YouTube Channel.
watch

Additionally, there are many tutorials and references for Smalltalk in the web. They apply quite well to Cuis, especially those written originally for Smalltalk-80 or Squeak. These books “Smalltalk-80 the language and its implementation” and “Inside Smalltalk volume I” are great introductory texts, and they are also the reference for the language and basic class library. Both are freely available. Read other references from Stef’s Free Online Smalltalk Books collection.