For the child being torn apart in a group chat, the child watching it happen and saying nothing, and the child who's the one typing. You pick the single one that fits your child's age and your child's situation, and you leave the rest on the shelf. A picture book for a five-year-old and a young-adult novel about a suicide attempt are both here, so read the notes before you choose. The right book is the one that matches the week your child is actually having.
Pick by your child's age and by which side of this they're standing on, and one book is enough. 'Troll Stinks!' is a good place to start if you're not sure, and it's the only one a young child needs: two goats send a troll horrible messages for a laugh, then find her crying, and it's funny before it's anything else. 'Chrissa Stands Strong' is for an 8-to-11-year-old living the small, deniable version, the whispers and the group texts. 'Bystander' is for the child who isn't the target and isn't the ringleader, and it is the harshest book here. 'Posted' is the gentlest of the novels and the best one to read alongside a child who won't talk about it directly. 'Backlash' is the heavy one and needs reading notes first. 'Goodbye Stranger' is for the almost-teen dealing with a photo that got out, and it's the only book here that won't feel dated, because Stead never names a platform. That's the honest caveat on this whole shelf: the technology in these books has aged badly. Chrissa's cruelty arrives by text message and 'Backlash' is set on Facebook. The machinery has moved on and none of the hurt has, so say that to your child rather than letting the old details give them a reason to shrug the book off.