Complex sentence: Customers who are interested in the subject matter can contact the bookstore owner for recommendations on books to read, the listing displayed on PalmWisdom's homepage is a good reference of the type of subjects that the bookstore can offer.
Split into simpler sentences: Customers who are interested in the subject matter can contact the bookstore owner directly for book recommendations. The listings displayed on PalmWisdom's homepage is a good reference of the type of subjects that the bookstore can offer.