Tricky one this... so let me throw in a mention for the "Teejay" series of textbooks and worksheets etc, produced by (I think) a couple of Scottish teachers and now much in use over the country. Over the years these books have become more sophisticated in terms of their presentation, but at their best the books solve a common problem for your typical maths teacher: that of not having enough questions. 'Cos boy, do these ever!
OK, there's a certain lack of sophistication, the maths can be clunky and ill-defined, and the actual maths methods outlined are sometimes false short-cuts (see my earlier comment here), but these books do have an honest, down to earth quality about them which makes them attractive to those teachers all too weary of books which look nice but have little in the way of work to offer. The Teejay books are great for "borderline" pupils as they don't major on really complicated stuff, though that is a potential weakness too, as they don't challenge and extend reasoning skills as much as I'd like.
But all the same, well done guys and keep it up. I'm picking the seminal tomes "Credit Maths/Intermediate 2", which address a well-known problem in Scottish maths education (latter too easy, yet supposedly on a par with the former) and couldn't really have been produced by anyone else.
Accepting the award tonight is Shuggie McShug, who has finished pages 45 to 48 and so doesn't have to do any homework.