The Lighting For Sales Mobile APP is packed full of useful information at your fingertips. Complete lighting diagrams for studio and location scenarios, over 150 images to use as inspiration and posing guides. The APP also has some tutorial videos and reference sections. Product will be updated periodically and has content exclusive to this product. All APP users will also save $50 on any of the other products we offer at Find Your Focus Photographic Education. Thank you and happy creating. Cris & Dee Duncan.