Parents need to know that authors Heather Corinna and Isabella Rotman pack a ton of evidence-based puberty and sex education into Wait, What?: A Comic Book Guide to Relationships, Bodies, and Growing Up. Several interactive pages, like a word search and a writing prompt, reinforce learning. Five teen friends -- Rico, Malia, Max, Sam, and Alexis -- guide readers through topics such as puberty, masturbation, gender, attraction, consent, sex, sexual identity, and finding support while growing up. The friends are incredibly diverse in terms of gender (including nonbinary and trans characters), sexuality, skin color, and personality. Empowering messages, delivered in affirming, inclusive language, consistently emphasize choice, knowledge, and respect of self and others. Sex is defined broadly, as more than just sexual intercourse, and includes helpful information about readiness for sex. While the chapters about sex are age-appropriate for both tweens and teens, parents may wish to preview content for tweens. This is a thoroughly modern guide for tweens and teens, however they identify.