Leda language overview.

Data types and algorithms (number types and linear algebra, basic data types, dictionaries, graphs, geometry, graphics).

Multiparadigm language, by Timothy Budd, creator of Little Smalltalk, Oregon State University. Combines procedural (imperative), object-oriented, logic, and functional programming, in one coherent, unified system.

By Timothy Budd; Addison-Wesley, 1994, ISBN 0201820803. First book on such programming. Many short chapters, easy to read, shows how unique features of each paradigm can be learned and applied concurrently via one tool. [Amazon.com]

Bug reports, book information, technical reports.