This book is an excellent introduction to Panpsychism. It gives lots of detailed history and clarifies the issues up to recent debates. I highly recommend it, especially for tough minded scientists and other true believers.
Science has had a hard time finding a focus for mind and awareness under its microscope. After a decade of having the spotlight of science on this subject area, there is still no agreement even on what consciousness is, and that is the self admission of the leaders in the field of consciousness studies.
It's my (lonely) view that science as now understood is not up to this task, is not itself well understood, and that a radical change of view and approach is needed to place mind in nature. My long standing openness to Panpsychism has recently led to incorperating it into an integrated view of nature. This view requires better "nontranscendental" science.
There are other recent voices who would approach this through quantum mechanics, emergence etc. etc. With the historical emphasis of this book, I dont think it had the scope for an in-depth coverage of what has been happening the past 25 years related to Panpsychism. My hope is that Skrbina is working on a sequel to clarify the current state of the art in addition to working on his own solutions in his research interests.