In the United States, you can order through Amazon.com and get your book within a few days, depending upon the shipping preference you select.
In the UK and Western Europe you can order through Amazon.uk, Amazon.de, and Amazon.fr. The books are printed in the UK and shipped within a few days, depending upon the shipping preference you select.
In Australia, India, and the Far East, consider ordering through The Book Depository, (www.bookdepository.co.uk). Though the book price is higher, they include shipping costs to anyplace in the world.
If you need your books faster, consider ordering them as e-books, downloading them to your computer, and printing them out on your own printer.