Here is a page with examples.
Evas' init/shutdown routines example
Some image object functions examples
Some more image object functions examples (2nd block)
Evas events (canvas and object ones) and some canvas operations example
Evas objects basic manipulation example
Evas alignment, minimum size, maximum size, padding and weight hints example
Evas object stacking functions (and some event handling)
Evas box example Evas box