Very cute book to have I'd you want to to learn a little more about Heartstopper and Alice's timeline.
I'd say that for someone like me who's been there since the beginning and who's followed everything Osemanverse, you really don't learn anything new. I felt almost a little disappointed when I finished it in less than an hour.
But it's probably great for newer readers, and it's always fun to have this type of information and pretty art in one object.