The Essential Book for Young Lads

The Essential Book For Young Lads is a book that appeared in Diary of a Wimpy Kid: Old School

Grandpa gave Greg a book while packing up items to Hardscrabble Farm. Greg said that the book was outdated, but he did not want to hurt his Grandpa feelings, decided to take the book with him during the camp. When Greg found out that the other group had raided his cabin to find Graham's snacks and using his baby wipes to clean up and tried to flush it in the toilet, causing it to clog, he flips through the pages and realized that there was a ton of useless stuff, like how to make a Potato Radio out of household objects, and a ton of good stuff on surviving wildness, like how to identify poison ivy and how to start a fire without matches.When Greg decided to try out some of the tricks from the book to see if this tricks worked. He led his group out to their campsite and he asked to borrow Emilio Mendoza's glasses and he focused a beam of sunlight onto a dry leaf which it was said to do in the book. Eventually, the leaf started smoking and caught fire. Greg and his group were so excited that this trick worked because they could make a fire without a help of an adult. But Greg and his group was a little carried away because he forgot to return Emilio's glasses which he was still holding, he hi-five his cabinnate named Jeffrey Swanson, breaking Emilio's glasses in the process which makes Emilio is blind as a bat without his glasses and smack right into the tree, makes him a little challenging for the rest of the trip.

Eventually, the book was burned as firewood since Greg's group were getting desperate.