Complex sentence: Perry Marshall (born April 10,1969) is an American online marketing strategist, entrepreneur, and author of several book, most notably the bestsellers The Ultimate Guide to Google AdWords "and" The Ultimate Guide to Facebook Advertising.
Split into simpler sentences: Perry Marshall (born April 10,1969) is an American entrepreneur, author and online marketing strategist. He is best known for his books The Ultimate Guide to Google AdWords "and" The Ultimate Guide to Facebook Advertising.