The book I read to research this post was YouTube Marketing Strategies by John Tighe which is a very good book that I downloaded for free from kindle. The bulk of this book which is only short is anterview between John and a YouTube marketing expert David Walsh. David has a YouTube channel that has around 47,000 subscribers and a total of 4.4 million viewings. David started his channel in 2013 and this intwerview is about how it became so successful. David has a web design business and has only mentioned his business website once in a video but it gets loads of visitors as a result. He gets loads of business too. He does stress the importance of adding keywords to a video after all YouTube is owned by Google and it is added to their search engine as well as the YouTube one bringing it lots of visitors. He also releases free guides on Kindle which are normally only short but attract visitors to his site and channel. He only makes one video a week and stresses anyone can do what he does. I did really enjoy reading this and do recommend reading it. I think his website is http://davidwalshonline.com. He lives in Ireland and is organising an event in LA for all his fans such has been the success.