Documentation
For a kick start, read The “Terse Guide” to install directly from the environment. It is useful both as a guide and a reference (in Cuis World Menu Help>Terse Guide to Cuis).
Resources
Cuis Books

The Cuis book. It is all about programming Smalltalk with Cuis. Whether you want to learn programming or to discover what Smalltalk has to offer, the book guides you in a journey to learn both the language, the tools and to code a modest replica of the Spacewar! game.
Design GUI with Morph. Learn how to design simple graphic user interface with Morph objects. The book tutors you to learn both fundamental facets of Morph and design patterns applied to GUI developments. The book still needs to be peer-reviewed, help welcomed.
The Cuis Documentation Project

If you are learning Smalltalk, the
Cuis Documentation Project can help you. The
documentation is presented in Tutorials, How-to guides,
References and
Explanations. read
more
Worth reading is the
unmaintained Cuis
cook book with still useful technical information
and notes.
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.