It Came in the Mail by Ben Clanton
After Liam writes to his mailbox, asking for more mail, he gets his wish, but soon he realizes that sending mail is even more fun than receiving it.
Liam really wants some mail, so he writes a letter to his mailbox asking for something in return. His mailbox delivers, sending Liam more than he could have hoped for...and how! But as the mail starts to pile up, Liam realizes that the best packages and parcels are even better when shared with friends.
Ben Clanton is an author and illustrator whose books include It Came in the Mail; Something Extraordinary; Rex Wrecks It!; Mo's Mustache; The Table Sets Itself; Vote for Me!; Rot, the Cutest in the World!; and Rot, the Bravest in the World!. He lives with his wife and son in Seattle, Washington.