Total Number of Middle School Books: 3,165
Monster Power: Exploring Renewable Energy (The Magic School Bus Rides Again)
Monsters Beware! (The Chronicles of Claudette)
Mount Vaea and the Tears of Apa'ula
Mouseheart
Mrs. Smith's Spy School for Girls (Mrs. Smith's Spy School for Girls #1)
Ms. Marvel, Vol. 1: No Normal (Ms. Marvel (Marvel NOW!) #1)
Muhammad Ali
My Big Fat Zombie Goldfish 3: Fins of Fury
My Big Fat Zombie Goldfish: Book 1
My Big Fat Zombie Goldfish: The SeaQuel
My Brother Sam Is Dead (Brother Sam trilogy)
My Family Adventure
My Family and Other Animals
My Father's Dragon
My Hero Academia, Vol. 1
My Hero Academia, Vol. 10 (My Hero Academia #10)
My Hero Academia Vol 2
My Hero Academia, Vol. 21 (My Hero Academia #21)