Arno Brandlhuber (born 1964) is a prominent European architect and urban planner renowned for his interdisciplinary and collaborative approach, encapsulated in the "+" symbol of his office, B+. His work is a fusion of architecture, teaching, research, and activism, where he integrates diverse creative voices—from architects and artists to writers and musicians—into his projects. Brandlhuber's practice is deeply discursive, aiming to reshape the built environment by fostering flexible and diverse urban lifestyles. His influence extends beyond traditional architecture, positioning him as a central figure in contemporary urban discourse and the evolution of creative urban spaces.