Pumpkinheads by Rainbow Rowell

Deja and Josiah are about as different as two people can be. She's flirty and extroverted, and he's shy and hard-working. But both of them love fall, and both of them love their local pumpkin patch, and so for two months each year, they are best friends, coworkers, and succotash experts together. But this is their last year working at the pumpkin patch before they both go off to college, and there's so much left undone and unsaid. So on this, their last night working together, they go on an epic quest all across the pumpkin patch, to make the most of their last chance.

This is an incredibly charming seasonal read about friendship and young love and nostalgia. Josiah and Deja are very fun, very relatable characters, and watching them romp around the pumpkin patch makes you want to go find a caramel apple and ride on a hay wagon. If you're looking for a lighthearted book to get you in the mood for Halloween, you couldn't make a better choice.