The book is not intended for library purchase: the price ($9.99 or £6.49) is set deliberately low to enable students to buy it - a print version of the book would have cost at least £45 ($69) and this was one of the reasons for opting for electronic self-publishing.  Printed text books have many advantages, but the prices have reached levels that make them inaccessible to all but the most affluent.

You may find that the book is still advertised on the Web as being available from Facet Publishing - this is not the case; no contract was ever signed with this publisher.