This book is Jon Elster's influential study of irrationality, challenging orthodox theories of rational choice.

'Dan Rhodes is a true original' – Hilary Mantel When the sleepy English village of Green Bottom hosts its first literary festival, the good, the bad and the ugly of the book world descend upon its leafy lanes. But the villagers are not prepared for the peculiar habits, petty rivalries and unspeakable desires of the authors. And they are certainly not equipped to deal with Wilberforce Selfram, the ghoul-faced, ageing enfant terrible who wreaks havoc wherever he goes. Sour Grapes is a hilarious satire on the literary world which takes no prisoners as it skewers authors, agents, publishers and reviewers alike.

Melvin and Marty are two of the funniest grapes ever to hang together. Everything upsets Melvin. He's a real pain in the...vine. A constant complainer. If he were on a rose bush, he'd be a thorn! When these two grapes get picked to go to market, things don't go too well for Melvin. "It's too hot! It's too cold!" It's always too...something-or-other. Let's face it, Melvin is one sour grape. Luckily for Melvin, his bestest bud Marty is "as cool as a cucumber" and "smarter than spinach" and is joining him on a fantastically fun adventure that can only be described as truly GRAPE!

The Sour Grape holds grudges for every reason under the sun. Lime never returned a scarf they borrowed? Grudge! Orange never called back? Grudge! But when a friend holds a grudge against the Sour Grape without listening to an explanation, the Sour Grape realizes how unfair grudges can be. Could a bunch of forgiveness and compassion be enough to turn a sour grape sweet?

Don’t miss the sixth picture book in the #1 New York Times bestselling Food Group series that’s ripe with humor from Jory John and Pete Oswald! The Sour Grape holds grudges for every reason under the sun. Lime never returned a scarf they borrowed? Grudge! Orange never called back? Grudge! But when a friend holds a grudge against the Sour Grape without listening to an explanation, the Sour Grape realizes how unfair grudges can be. Could a bunch of forgiveness and compassion be enough to turn a sour grape sweet? Jory John and Pete Oswald serve up another heaping plate of laughs and lessons with this empowering, witty, and charming addition to their #1 New York Times bestselling series! Check Out Jory John and Pete Oswald’s other funny bestselling books for kids 4-8 and anyone who wants a laugh: The Bad Seed The Good Egg The Cool Bean The Couch Potato The Smart Cookie The Good Egg Presents: The Great Eggscape! The Bad Seed Presents: The Good, the Bad, the Spooky! The Cool Bean Presents: As Cool As It Gets! That’s What Dinosaurs Do