Forever is a long time to wait. Mason grumbles that waiting for Nana’s blueberry pie “is taking forever.” Amused—and eager to distract his grandson—Grandpa asks Mason if he knows how long forever is. Has Grandpa owned his tractor forever? Did it take forever for Nana’s roses to grow up to the chimney? Is it as long as water “has been racing down the stream”? Forever must be as long as “the great elm tree has been here.” Nope, says Grandpa, but waiting’s over; pie’s ready! After devouring a slice, Mason declares it was worth the wait. Now, his understanding is clearer. Forever, he asserts, is how long he’ll love Nana’s pie. Even better—it’s how long he’ll love Grandpa and Nana. This simple story sweetly portrays a realistic, loving relationship. Listeners on laps or in group settings will eagerly volunteer examples of how long forever is and when they had to wait for desired things. Commendably, the tale helps youngsters approach an abstract math concept—time—concretely and creatively. The watercolor-and-colored pencil illustrations are warm and expressive, depicting lush backgrounds. Mason has light-brown skin; his grandparents’ skin is pale. Grandpa has stark white hair and white facial hair; Nana looks less stereotypical, with a blonde bob and red specs. The author provides a link to some luscious recipes. It won’t take forever for kids to return to this one.