An emphasis on
Guilty pleasures could produce interesting results.
No guilt here. I love A.A.Milne's
Winnie-the-Pooh books with E.H. Shephard illustrations, and I don't care who knows.

(I make the distinction regarding "A.A.Milne's" because Disney has done some appalling things with Winnie the Pooh.) But I won't nominate any of these, because I wouldn't want to hear anything negative said about them, however well intentioned. (Not to mention that they wouldn't put much of a dent in anyone's reading time, even if we read all of them.

)
What I really wanted to nominate was the
The Bromeliad trilogy by Terry Pratchett (
Truckers,
Diggers and
Wings), but you can't get the three in one in ebook form - and individually the books are still full price. I could just nominate the first, but you don't get the full effect of this miniature epic without reading the set.
So the hunt continues.