You can buy the fifth edition of the book from 2016 in printed form in English from this website (delivery is usually within 7-10 days for the United States and Europe and about two weeks for elsewhere) or from some bookstores, like for instance: book.store.bg. Please note that for deliveries outside the European Union your purchase may be subject to the customs fees and import duties of the jurisdiction to which you have your order shipped. These charges are the recipient's responsibility as we have no control — and in most cases even no knowledge — of them.
The — substantially shorter — second edition from 2009 is available as a free download in Spanish and Russian:
If you are interested in distributing the book in your country, please contact us directly for orders for 10 items or more. It is delivered as a multiple of ten, because the used cardboard boxes are designed for 10 items. The invoice is in U.S. dollars or in euro, and in the latter case still the U.S. dollar discounts apply.
By clicking on the image of the book cover located at the upper left-hand corner, you can download an image of the front cover with high resolution. This can be used for example on the website of your online bookstore. (The result is usually better than the result that comes through the use of a scanner.)