Specify shop fixtures with identical color metrics to gallery: same CCT (e.g., 3000K), CRI 95+, TM-30 Rf 95+. Increase illuminance to retail levels (500-750 lux for general, 1000+ for feature displays). Use identical lamp/LED type if possible for perfect consistency. Position fixtures to avoid reflections on book covers and glass cases. Create high-color-rendering zone for print viewing with dedicated illuminance control. Include viewing station where customers can examine prints under gallery-equivalent conditions.