It might lead to greater conversion rate.
Treat the web page as a conversion funnel. Build it so that it dynamically reacts and changes accordingly to the visitor’s actions. This is similar to other marketing automation systems, where you change their path through the funnel (if they clicked on the link in the email, start them on another sequence, show them a different page, etc.), only it happens in “real time” on a single page.
It’s is hard to get people to buy and read your book – you need to convince them it’s worth their money and time.
Content marketing is excellent at distributing your presence and creating entrance points for potential buyers. Use the same techniques to get people excited and buy your book. Use a combination of parts of the book and new content to establish many points where buyers will meet your book and enter the funnel. Then use all the other content that you already created (again, parts of the book and new content) to automatically feed the new potential buyer and lure them closer and closer to buying it. You can use whole chapters from the book if they can stand on their own as interesting and useful, or create a special version that can do that. This process can start (it’s better this way) before the book is published.