Which twin is taller? Sibling rivalry rises to new heights in this funny picture book about two willful and imaginative giraffes.

Rafi and Rita are twins. They do everything together. They like the same things, they finish each other's sentences, and they look exactly the same . . . except for their height. But who is the tallest twin, really? Is it Rafi, who's so tall that a painter trying to paint him ran out of paint? Or Rita, so towering in stature that when her hat falls off it takes three hours to hit the ground? In a hilarious progression of hyperbole, Jarvis's narrative, at once humorous and endearing, is matched by Chris Judge's bold and whimsical illustrations in a charming, playful, and oh-so-familiar tale of competitiveness.