Here is a Leo Lionni book for the very youngest! What shall we do today?o two mice ask each other. Read a book? Pick flowers? Go swimming? Play ball? Climb a tree or gather leaves? Play hide- and- seek or dress- up? Talk on the telephoneu until it’s time to say good night?o Lionni’s award- winning graphic art is at its best in this very simple board book that begs to be shared with a baby or toddler.