Great book on acrylics for under a fiver

Hi Folks I am back with the land of the living once more thanks to a purchase of a S.A.D Light box that was kindly donated to me by Swaffham Lions International (my old home town) I do suffer with the winter depression as well as my clinical depression... I while back I borrowed a book from the library called The North Light Book of Acrylic Painting Techniques by Earl Grenville Killeen with Leab Rachel Killeen....it's a book with 23 artists showing and describing their various techniques... I found this book to be very helpful and it was a good one to have to keep on your art bookshelf, so I searched the internet and I could get a new one from the USA but the postage cost was four times the cost of the book, then via good old Amazon I found a second hand copy for just under a fiver from a company called world of books www.worldofbooks.com the book arrived in less than ten days and it was in very good condition seeing it was an ex library book... So I encourage anyone to go down this route to get your books as it's a far cheaper way of purchasing them... Phil (lol)