Here is a list of current free Kindle ebooks for kids. These were free at the time of this post (March 26, 2015 around 1:30 pm est).
Tongue Twisters for Kids – Great book for kids with a little humor that parents will enjoy as well!
125 Funny Jokes for Kids – 40 pages of jokes for beginning readers.
Peewee the Playful Puppy – Bedtime stories, jokes, and games.
The Light Keepers – Fantasy for elementary aged readers.
Lily Lemon Blossom Welcome to Lily’s Room – Great book for girls age 7 and younger.
Fairy Tales Every Child Should Know – 286 Pages with popular fairy tales.
Terry Treetop and the Lost Egg – Book for early and beginning readers.
The Monster Who Loved to Eat Meatballs – Beginning reader that every child will enjoy.
The Adventures of Tom Sawyer – A classic by Mark Twain. For mature children.
Dinosaur Tales – Bedtime stories for ages 3-10.