architekturbild, the European Architectural Photography Prize, has been awarded on a two-yearly basis since 1995. This time the contestants' subject is "Borders." A polarized subject, borders can be understood in the sense of opening or closing, of including or excluding, or as definitions of geographical or (urban) spatial areas. They can be clearly recognizable or subtly noticeable, but are always perceived as either protecting or deterring. In the context of the European Architectural Photography Prize 2017, this book by no means focuses on the negative interpretations of this term, but rather on how the concept of 'borders' influences and stimulates photographic-artistic involvement with our built environment. This book accompanies an international traveling exhibition, starting in the German Architecture Museum (DAM) on May 5th, 2017.