It's a handsome volume, a well done trade paperback with nice typesetting on good paper, and it includes two brief essays. The first is titled "The Two Sides of John D." written by Martin L. Kohler and the other is called "John D. MacDonald in Context," by Matthew Lewis. Kohler's piece, which appears as preface to the novel, discusses the dichotomy of the heroes of MacDonald's early novels and the later person of Travis McGee, and how those early protagonists, despite whatever travails are visited upon them, are always "on their way to becoming a family man," while McGee -- "essentially the same man" -- has eschewed most of the conventions of modern society. It's an interesting essay -- despite a few factual errors in discussing the author's biography -- and is the only place in the book where the novel's original title is revealed.
Matthew's Lewis' entry appears as an afterword and discusses the history of the paperback original and JDM's place in that narrative. Lewis, the editor and founder of Gutter Press and the pulp magazine Out of the Gutter, knows the subject matter and has produced a nice, succinct and instructive piece on how MacDonald became one of the early celebrities of the paperback novel. He also nails the appeal of JDM's writing style, calling it "strangely addictive prose that [he] evidentially produced at will."
As far as I can tell, On the Make is -- with the exception of The Executioners (Cape Fear) -- the only non-Travis McGee John D MacDonald novel currently in print. It is also currently available as an eBook (bearing its original title) from another publisher, leading me to wonder if there is some kind of copyright issue with this particular novel that would cause this good-but-not-great early JDM it be reintroduced to a reading public while other, superior works by this author languish in out-of-print obscurity. Still, it's always nice to get a new printing of an old JDM book, especially one redone with such lavish care.