On Dec 4, 2007, at 1:52 , Damien Cassou wrote:

>   Block are used to delimit a sequence of parametrized instructions
>   for which evaluation is deferred. They can also be seen as anonymous
>   functions with or without arguments.


For an introduction to Smalltalk this sounds incredibly convoluted.

How about:

"Blocks are objects containing code that is not executed immediately.  
They are the basis for control structures like conditionals or loops.  
Also, blocks can be used to attach behavior, e.g., to menu items."

- Bert -