the smallest one is missing it's title page but I believe it's a 1957 print. it starts with "meet our home testers" page, and is holding on by 1 spiral binding; remaining pages are well bound with minimal holes torn. overall pages are clean with very few stains, no dog ears, and one page slightly worn in one spot. spine is well worn (see photos) and covers have some smudge markings.
the larger spiral bound book is a 1965 FIRST EDITION 2ND PRINTING. title page has a large spill stain that bleeds through (and gradually shrinks) to the first 20 pages. (see photos) more similar stains here and there and some light water damage (just a little wrinkling) no scribbling or dog ears. some names penned over on title page. covers are a bit dirty with smudge marks and spine is a little worn at the top. binding is solid.
large paperback - 1978 7th printing. some tears to the rear cover. stain on cover bleeds through to the next 4 pages. a couple accidental dog ears in the rear otherwise pages are clean and unmarked. covers are a bit wrinkled. wear to covers edges/corners. small tear at the top and bottom of the spine
considering these books were meant for kids to use they aren't in too bad of shape for 60+ years old