The Look Book feature is a specially created store page (using a magazine-inspired layout) that can show a range of images of products styled together (e.g. photos of entire outfits or lifestyle shoots). Etailers can add summary descriptions for each of the images, and link them directly to the product pages of the multiple items shown, which will create 'hotspots' on the Look Book images that site users can click on to be taken to the relevant pages. This enables customers to shop by style - a great selling tool to appeal to those driven by aesthetics and/or influenced by trends.
This functionality is not available on standalone mobile sites.