The Color of Magic by Terry Pratchett description:
This is Terry Pratchett’s maiden voyage through the now-legendary land of Discworld. This is where it all begins — with the tourist Twoflower and his wizard guide, Rincewind.
On a world supported on the back of a giant turtle (sex unknown), a gleeful, explosive, wickedly eccentric expedition sets out. There’s an avaricious but inept wizard, a naive tourist whose luggage moves on hundreds of dear little legs, dragons who only exist if you believe in them, and of course THE EDGE of the planet…
There are good books, and there are great books, and then there are clever books, and this is an ingeniously clever book. I’ve read other books who’ve attempted this style of story telling, and they tend to end up rambling and confusing to the point it’s like the author didn’t know what to say and so tried to sound funny, and ended up being boringly repetitive. But Pratchett manages the sort of nonsensical style of throwing out what at times are just random pieces of information about the world and how it all works, and other times what turns out to be actually very necessary little tid-bits, but both sorts end up helping to create this unusual world in such a vivid way that would normally take several books to do. So much has been put into this tale that it should be overwhelming, and yet it all just falls right into place to make this unbelievable adventure that feels like one of those dreams that only makes sense while you’re in it. I mean he didn’t just created another world, he created a universe and the understanding of such. The people within aren’t just described; they’re shown and developed in their acts and their own stories so that in just a few paragraphs you feel like you really know them. And of course since the whole tale revolves around Rincewind and Twoflower you really get some interesting views from such completely different sort of characters. Rincewind, who is more aware and terrified of the dangers they’re in and seems to have a more logical understanding of the world around them, and Twoflower, who thinks it’s all just a great vacation to tell everyone about when he returns home, and sometimes is a bit naive about the situations he gets trapped in. Now all there is to do is devour the rest of the series, which I’m happy to know is quite a lot of books.