The Four Donkeys, written by Lloyd Alexander and illustrated by Lester Abrams, is a scrumptious book to feast your eyes upon. The expressions and body types of the tailor, baker, and shoemaker are quite funny, and the gorgeous patterned borders on every page make this fable a great classic. 
An alphabet book called What's Inside? is another book by Satoshi Kitamura that will have you looking again and again for his brilliant gags and details. His pen lines and watercolors have a perfected sloppiness that gives childlike character to every object on the crowded pages.
Cat Stevens's book Teaser and the Firecat is written in English, French, and Spanish. The moon falls from the sky and rolls away into the purple river, and Teaser and the Firecat try to rescue it. Simple and sweet.
I fell in love with Tove Jansson's Moominpappa books in fifth grade and still enjoy them today. Her book called Who Will Comfort Toffle? from 1960 is filled with colorful characters and of course grand adventures.
