If you have little ones to entertain, checkout this free ebook! Farm Animals is a picture book with high quality pictures. It has great reviews!
Remember with all things Amazon, prices change rapidly! This may not be free for long.
This is a Kindle version but remember there are free Kindle reading apps that allow you to read Kindle books on your mobile device and computer.
You might want to look over the other free Kindle books I have posted and see if they are still available too.