Big Words for Little People is geared toward kids older than four, but the preschool set really seem to enjoy it even though it uses words they probably don’t use.
I think kids like the book because it recognizes that they want to learn. Dumbing down to our children is wrong on so many levels but the primary reason is that they know you are doing it. How many times do kids have to say, "I understand, I'm not stupid" to get the point across that they want bigger language.
Read the rest at School Library Journal.