Books 2-12 Humphrey Series #2 Friendship According to Humphrey #3 Trouble According to Humphrey #4 Surprises According to Humphrey #5 Adventure According to Humphrey #6 Summer According to Humphrey #7 School Days According to Humphrey #8 Mysteries According to Humphrey #9 Winter According to Humphrey #10 Secrets According to Humphrey #11 Imagination According to Humphrey #12 Spring According to Humphrey Beautiful book collection by Betty G Birney Like new condition, no marks. Would make wonderful gift for your young reader.