I discovered only recently that since retiring in 2007 Slifer has self-published thirteen books using BLURB. As Slifer says:
... With the advent of self-publishing software and print-on-demand books I am now empowered to produce a book about rock art for myself, free of the demands of publishers, reviewers, editors and marketing directors.
Art on the Rocks: The Best of the Quest. The book is 224 pages in length and features photographs of the author's favorite rock art sites made over a period of thirty years. Given the length and quality of the book the hardcover price of $87.99 is unsurprising, if a bit daunting. Slifer's on line preview of the book on BLURB generously displays all the photos. With the selection of the full-screen option the preview text is a bit small for comfort, but still readable.