A hilarious and reassuring New York Times Number 1 bestseller about feeling your emotions - sometimes it's okay not to feel okay!Meet Jim Panzee. He's in a BAD mood. Nothing feels right!Nothing will do, and Jim just doesn't know why...

His friends can't understand it - HOW can he be in a mood when it's such a beautiful day!? They have lots of suggestions for how to make him feel better. But Jim can't take all the advice... and has a bit of a meltdown.

Could it be that he just needs a day to feel grumpy?This modern classic is the perfect reminder that 'grumpy monkey' days never last long.