I’d like to add this on, to make things easier for everyone, since the books aren’t…actually in the correct order if you just read them in chronological order.
It’s a link to a masterpost of mine with all of the books in their proper order, using the site above, so that you don’t have to play a guessing game with which books you should be reading when.
Please don’t take the words “read animorphs” lightly, I experienced these books at nearly thirty years old and I am still shaken by some of the body horror, vividly accurate representations of psychological trauma and at least a dozen explorations into the terror of genocide.