Magento Lookbook helps you add an image slider / gallery with hotspots. Customers can go to the product page by clicking on any hotspot on the gallery to its respective product.
With the help of LookBook extension you can show many products in a single image and direct them to respective products they like to purchase. This is a very interactive way to sell your products.
For Example, if you have a picture of a model wearing apparel which you sell, then you can hotspot those apparel in the picture linked to those apparel!