A revised 5th edition of Forest Ecology (ISBN 1119476089) is out now! Don is one of the co-authors. It has been 25 years since the previous edition and the authors wanted to retain the overall focus from the previous edition (ecosystem level), but update the text to include information about new ecological concepts and methods, and critical areas interest like sustainability. Don took a lot of care (and an enormous investment in time) to update the text, images and references for all the chapters that he worked on. It’s out now and you can get it most book sellers (and there is a PDF version). Congrats Don for a job well done!