Albert Whitman & Company (2016)
Have you ever had a grumpy day and not known why? Penguin is having a grumpy day like that. No matter what he does, he just can't shake it! Sometimes the only thing left to do is wash the grumpy day away and start over. The simple text and lively illustrations are the perfect cure for even the grumpiest of days.
Available now at any good bookshop in the U.S. or on Amazon UK. Warning: this book contains penguin nudity.