ATM just for a limited time!
Digital Leaf publishers have several highly reviewed ebooks free for you iPads:
I have been collecting great books when they have gone free for years now.
Although no where near the amount of highly reviewed free books there used to be, there are still some great ones to find and load.
but wait there's more!
and also a Montessori Intro to colours -usually $6.49 is #FREE atm