A Critique of Creativity and Complexity
This book titled A Critique of Creativity and Complexity looks very interesting because even though process-relational philosophy is not to be found in it -at least not directly and upon a cursory glance - it does the job in defending that other notion that is often seen as a major component of process philosophy, and that's the (ultimate) category of creativity.
Also of note perhaps is the book's concern with order despite radical contingency or chaos, pace Quentin Meillassoux. It discusses in other words how it is possible for order, or harmony, to emerge despite radically chaotic transcendental conditions. Insofar as process-relational philosophy goes, C.S. Peirce, Charles Hartshorne, and Alfred North Whitehead were all interested in this question.
A free preview (73 pages!) of the book is available HERE. Definitely worth a look at an often cliched subject: creativity.