[fantasyfan]

OK I’ll nominate Boy: Tales of Childhood by Roald Dahl.
Amazon UK £4.49 (includes Going Solo.)

This is quite easily available for a moderate price as an ebook or obtainable at libraries.

From the review at Amazon UK

“As a boy, all sorts of unusual things happened to Roald Dahl. There was the time he and four school friends got their revenge on beastly Mrs Prachett in her sweet shop.
There are stories of holidays in fishing boats, African adventures and the days of tasting chocolate for Cadbury's.
You'll hear tales of horrible school bullies and the motor-car accident when Roald's nose was nearly sliced clean off . . .
Roald Dahl vividly shares his memories; some are funny. Some are painful. Some are unpleasant. All are true.”