The Optics Press Vol.2 has officially sold out as of today. There will be no further printings. I want to thank everyone that purchased a copy. The last few months have been a ton of work and even though the cost of the book (not cheap by any means) barely covered the materials and printing, I'd do it again in a heartbeat. I couldn't be more proud of this book and am looking forward to another labor of love with The Optics Press Vol.3.