Amazon Children's Books - 80% Off And Some Eligible For 4-for-3

Amazon has reduced a lot of their children's bargain books lately. There are literally thousands to sort through, so I am just listing a handful. Happy hunting!
Examples:
Harry Potter and the Chamber of Secrets-$1.43

Harry Potter and the Goblet of Fire Coloring Book-$0.82

Captain Underpants And The Preposterous Plight Of The Purple Potty People-$3.48

the Biggest Pumpkin Ever- $4.99

Mr. Putter & Tabby Spin the Yarn- $2.99

The Little Engine That Could (Oversize Gift Edition) (Hardcover)-reg. price $85 now just $17.83