Schools 1,345 Friendship 321 Middle schools 267 Families 185 Magic 99 Best friends 94 First day of school 91 Teachers 80 Bullying 71 Interpersonal relations 67 Conduct of life 61 High schools 59 Boarding schools 57 Diaries 55 Elementary schools 55 Brothers and sisters 54 Animals 38 African Americans 37 Superheroes 36 Monsters 35 Dogs 32 Wizards 29 History 28 Self-confidence 28 Kindergarten 27 Hamsters 26 Cats 25 Human behavior 25 Popularity 25 Heroes 24