This site relies on rollovers to provide book descriptions. As a result, in the browser on my android tablet (and I assume on my iPad), I can get no product descriptions. This seems fundamentally flawed for a site aimed at selling books to a mobile market.
Further, clicking on the book cover or book title takes one straight to the checkout. This is most unexpected behaviour. I would assume that it would take me to a book description.
I think that it is a mistake to use the logos.com checkout. I wonder what non-logos users will think of being taken from one domain to another when purchasing books.