The engrossing world of “Billie Acts Weird” is the first book in the MIME (Mental Illness Made Easier) series by the author Katrina C. Pratcher, who explores an essential and frequently misconstrued topic: the mental health of children. Pratcher applies her extensive expertise in psychiatric mental health nursing to children’s literature with an emphasis on mental wellness, frequently a misconstrued topic. Psychosis, also known as schizophrenia, is more easily recognizable in adolescents and adults, but might surface in younger children. Since children are encouraged to use their imagination, symptoms may not be obvious.