McGraw-Hill's "Post-Traumatic Stress Disorder Sourcebook" is being distributed in both Microsoft Reader and Adobe eBook Reader format. It is enhanced with a DOI link at the beginning of the book, thus enabling the reader to purchase the print edition of the book. The DOI link also facilitates availability of free excerpts, exposure to book reviews, access to the publisher's catalog page for additional related information, and sales across a publisher's distribution chain regardless of format.