Nisha's monster follows her everywhere. It used to be small, but recently her monster has begun to grow. And as her monster gets bigger and bigger, Nisha feels more and more unlike herself. When people refer to her as a boy, or when she tries to hide her true gender identity, Nisha's dysphoria monster grows larger and larger. Until, one day, Nisha meets Jack - a trans man - who shows Nisha how she can shrink her dysphoria monster back down to size. This touching story is the perfect book for discussing gender dysphoria with children, explaining what it is and how they and their families can deal with it. It also includes an accompanying guide for parents with further information about gender dysphoria, terminology, and first-hand examples of the author's own experiences.