I have read many ebooks in the past and one great option is there can be links added that send you to a site for further detailed reading on a particular point. It's also nice to not have to remember the book when you are out and about an ebook can be viewed on your PC, Ipad and phone as well. For the first time I found a major limitation with my kindle ebook. The Icom guide book had many references where you were asked to return to a particular page. I had never noticed in the past but my kindle version of the book the page numbers were very odd. I guess the wording of page numbers is incorrect as kindle show a percent or a location. The location number is on the thousands! When the author asks you to return to page 55 it is next to impossible to find it and can get very frustrating. In this book in particular you are directed by page number to either move back or forward for further reading. It was really getting to me that I went back to Amazon and purchased the paperback and it was delivered the other day. It goes to show you that sometimes that technology has limitations and going back to the old school still works.