I bought the 8th edition. I felt like the book spent too much time on things like how to pick out a good mattress rather than the actual running of day-to-day activities. It also seems outdated. It does mention social media, but it also mentions listing ads in the paper, reservation agencies, and "if you don't own a computer, get one." Website screen shots look like they're from 1996. These were all relevant at one time, but are out dated now.