Click Clack Moo Cows That Type by Doreen Cronin, is a well know children's book. In this fiction book, Farmer Brown's cows find a typewriter in their barn and write farmer Brown letters requesting him things, but when Farmer Brown refuses to provide the cows with the things that they asked for, the cows go on strike. I would use this book for grades 2nd-3rd, I think it would be a good book to teach cause and effect or sequencing of events. (Book Reading level: Lexile 470L)