Keep the gates's closed

At Chapters Coquitlam in June, there was a display of many copies of Behind the Beautiful Forevers by Katherine Boo. Next to the display was a Gates Picks notice - A Book Review by Bill Gates. The final paragraph of the notice is seen above, in which Bill's last name is changed to Gate based on the apostrophe's location. Then, it should be Mr. Gates's Facebook page (note the apostrophe-S and the noncapitalized page), and author shouldn't be capitalized. As well, I think a comma before and a comma after the website would be better than having the colon. It's a crap sentence unbecoming a bookstore, but in my view this post doesn't outdo this post. Click the image to enlarge it.