Link: br br My Little Pony: The Journal of the Two Sisters: The Official Chronicles of Princesses Celestia and Luna by Amy Keating Rogers br br Publisher: Little, Brown Books for Young Readers (June 10, 2014) br br As seen on the hit animated series My Little Pony: Friendship is Magic! br br Learn the history of Princess Celestia and Princess Luna by reading the diary they kept when they were younger. PLUS, hidden inside, readers will discover the pages of a bonus book–The Journal of Friendship.