2017 is the 150th anniversary of Frank Lloyd Wright's birth, which is being celebrated with exhibitions, publications, and other events. It's as good a time as any, then, to release the fourth edition of "Wright Sites," which features 71 built projects open to the public in the United States and Japan. Most numerous, obviously, are the US buildings (all but three of them), which are organized alphabetically by state. The buildings are documented with photos, descriptive text, addresses, contact information, and details of public access. Six suggested itineraries at the back of the book are especially helpful for people planning trips to visit multiple Wright buildings. For those interested in a more comprehensive view of Wright's oeuvre, the fourth edition of William Allin Storrer's indispensable "Complete Catalog" will be released in June 2017, but Hoglund's slimmer "Wright Sites" is handy for carrying around to the relatively small number of Wright buildings open to the public. ( )