Two of these sketchbooks, Underwater Microcosmos and Lights in the Distance: Italy and France, were destroyed by fire while in the permanment collection of Brooklyn Art Library. However, the indiviual images can be purchased as prints. Inquire for details using the Contact page. Prehistoric: Zooplankton was not destroyed and has been returned to me. The book itself is available for purchase. The indiviual images can also be ordered as limited edition gicleé prints.