Sometimes a lot of book-reading can lead to a lot of sitting.
The best cure for too much sitting is getting up and moving around!
But in the meantime, we've searched for the best back-supporting cushion and this is what we came up with. While ultimately a matter of personal taste, we find that the firmer cushions give the best support.
Great gift for your favorite teacher too, tell him/her that it's for the car, to make that commute to and from school just a little more pleasant.