The book is quite amusing, with some of the best letters being those where recipients realize it's a prank and respond in kind.
The Storygraph finds The Timewaster Letters quite amusing, particularly the letters where the recipients catch on to the prank and respond with their own humor. This suggests that the book's appeal lies in its interactive nature and the cleverness of the recipients' responses. The reviewer implies that the book is not only funny but also engaging, as it invites readers to imagine the back-and-forth of these humorous exchanges.
Quick quotes
Quite amusing, my favourites are the ones in which the recipients have a good inkling that it's a wind-up and respond in kind
I bought this when it was a 99p bargain
It's a great book to pick up and read a few letters at a time