This is a great book. Not only does it help you with ideas for questions, but also helps to fucus your research of the job, company and industry. The questions I asked used to be my weakest element in an interview, now my interviewers complement my questions. It has been the one book that has improved my interviewing skills the most. My only caution is that some of the suggested questions are brazen, and/or too abstract and run the risk of intimidating your interviewer. This can be overcome by taking the advice of the author on some aspects, but it took me a little practice to realize that.