If you were a horse, what would you do? Could you fit in your clothes? Would you give your little sister a ride? Would your brother even notice?   Gallop along with two-time Caldecott Medalist Sophie Blackall through this riotous day in the life of a child who imagines their life as a horse. What ensues are uproarious, resonant episodes that feature a giant horse in familiar settings offering both a visual feast, a grand dose of joy, and a celebration of the real power of imagination to help us navigate the world.