Let's be clear about this. If you're not already a Terry Pratchett fan, you're unlikely to be interested in this book. But if you've got as far as reading the reviews of it, you must at least have a smidgen of interest - so let's discuss why Wintersmith is such an excellent book.
The Nac Mac Feegle (a race of small, blue, vicious, kilt-wearing, boozing and ultimately hilarious men) were first introduced in the main Discworld novel Carpe Jugulum, but have since been expanded upon in the Tiffany Aching series, in The Wee Free Men and A Hatful of Sky. Nominally a series for younger readers, this series has been (up to now) every bit as enjoyable as the main books. Tiffany Aching, a junior witch, is the heroine again here, but the Feegles are the scene-stealers, reducing any reader to laughing out loud - you just can't help it.
In Wintersmith, in which Tiffany inadvertently attracts the attention of the title character (an elemental who creates winter, in short), Tiffany develops further as a character who could potentially feature in one of the main books. There is a welcome return for the unsurpassably funny Nanny Ogg, the formidable Granny Weatherwax and Tiffany's friend/beau Roland. All the ingredients are there for a fantastic read, and Pratchett doesn't disappoint. It's an easy read, difficult to put down, and I was quite sorry when it was all over because I could easily have carried on for another 500 pages.
So, anybody who disnae wanna fight Big Yan, buy this book wi' all its long werdy things, ye bigjobs scunners! (as Rob Anybody might say).