I've tried to read many Pratchett's, but I just don't get them, or something. They are pointless, with little story, awful humour, and I'll never, as long as I live, understand what the fuss is all about with him.
I actually read The Science of Discworld (Pratchett, Stewart & Cohen) all the way through, but after one of the 'fantasy' chapters, I ended up skipping them, and just reading the science stuff. I thought that was bearable, but even with that, I've read better - Bryson's A Short History of Nearly Everything, for example. And I've tried a few more.
The Five People You Meet In Heaven by Mitch Albom was a disappointment. I thought it was overly simple, and the style just didn't appeal to me. Atwood's The Penelopiad was a disappointment too. I love Atwood, and am interested in mythic gods and all that stuff, so I don't know why... perhaps, that too, was overly simple.
But I actually thought Paulo Coelho's The Alchemist was okay. It was simple too, but I wasn't expecting much, and it didn't take long to read.
I have been disappointed in everything I've read by McEwen. I've read Saturday, Amsterdam, Atonement and On Chesil Beach, and have found them all to be tedious. I can't quite put my finger on why, but they have all made me switch off, and have taken considerable effort to get through. Practically everyone I know has enjoyed them, though, and many with almost identical tastes in books to me, so I have continued to give them a go. I might give it up now.
David Mitchell's Cloud Atlas I thought was too much. He could have used any one of those methods and I might have been happy, but together it was just crazy.