Grumpy Monkey School Stinks! (Grumpy Monkey Graphic Novels)

Grumpy Monkey Don't Be Scared

Mom for a Day (Grumpy Monkey)

Grumpy Monkey

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Grumpy Monkey Freshly Squeezed (Grumpy Monkey, Volume 1)

Grumpy Monkey Spring Fever

Grumpy Monkey Valentine Gross-Out

Oh, No! Christmas (Grumpy Monkey)

Mine! (Grumpy Monkey)