Ipad Apps

My brother just gave me his ipad that he hasn’t been using.  I got it set up today.  What apps do you use/recommend?  I would like to use it for ebooks/audiobooks, educational games/apps, and anything else worth using it for.  It wasn’t something I expected to receive, so didn’t have a plan in place of how I wanted to use it.  I’ve heard there is meal planning and organization apps.  I prefer free apps right now, but will look at others if the price is right.

Thanks for any input.