Hi Natalie
thanks for you interest.
We offer an application, that allows you to integrate lookbook (interactive slideshow with multiple hotspots per slide) to any Shopify shop. It is a bit like Youtube video, you generate the lookbook and copy-paste a snippet of the code to your Shopify store page or template.
You may check our demo video at http://youtu.be/t465_V6mdNM
I am not sure, is there are any theme called Lookbook, but if it exists - it isn't our product.
If you have any questions regarding Lookbook Cloud - feel free to ask.
Cheers
Alex