Available in English and Spanish. Launching September 1, 2026.
About the Book
Earth and Moonie are solar system siblings who are as close as can be (and not just because of gravity). Together, big sister Earth and little brother Moonie navigate big questions, small frustrations, mysterious Vitamin C, and everyday adventures that feel larger than life. This funny and heartfelt graphic chapter book is perfect for readers ages 6–9, especially fans of Pizza and Taco and Owl Diaries.
JLG Gold Standard Selection
Tierra y Lunita is a Junior Library Guild Gold Standard selection, bringing Earth and Moonie to libraries and young readers across the U.S.
“Charming and fun… loving siblings who enjoy adventure and playtime that young readers will recognize.”
★ School Library Journal, Starred Review
"Sweet, tongue-in-cheek fare for young readers with their eyes on the skies."
Kirkus Reviews
"My daughter was wholly absorbed. If you or your kiddos are a fan of Elephant & Piggie, this needs to be on your radar."
D. W. Walters, children’s book author
"My 6 year old is obsessed and reads it constantly. The car chase part makes him giggle like a loon."
Shannon Cruz
Amazon review
"I never ever wanted to put it down because of how many hilarious lines were in the book."
Sophia, age 9, Kid Advisory Board reader
"Super cute and fun for kids and parents. Kinda gives the same vibes as Bluey."
Singe, Goodreads
“Great simple art. Fun webcomic energy. It’s a fun expansion of the one-off gags that the creator has been doing.”
Rabbitt Stew Comics