It looks like Greg is doing a solo tour to promote his new book Population Wars this September. He will play 5-6 songs during the show and will do a reading on the book combined with a Q&A. The book will be sold at the shows. It's also possible to get it signed during the the post-show signing party. Tour dates so far:

For those who can't make it to the shows, the book can still be puchased at Kings road!