Danny the Champion of the World by Roald Dahl is a 205-page softcover from Puffin Books, published by The Penguin Group, first published in 1975, this copy reissued in 2007.  The condition is good. 

Book Summary

Danny has a life any boy would love--his home is a gypsy caravan, he's the youngest master car mechanic around, and his best friend is his dad, who never runs out of wonderful stories to tell.  But one night Danny learns the shocking secret that his father has kept hidden for years.  Now the secret's out, and Danny's off on a wild adventure.  Until Mr. Hazell shows up.  He's hopping mad, and he's come to claim what's his.