early 50s vintage children's picture books w/ retro cover art illustrations, school learning fun

Lot of late 40s - early 1950s vintage children's books and coloring books? / workbooks with some really wonderful cover illustrations! This lot has covers with? learning theme - the whole lot is shown in the first photo.

These are very shabby, they've been much loved and played with. We think they'd make great display pieces just as they are.