This is an excellent and entertaining read.
As well as practical tips on interviewing, from preparation to equipment to the types of person one might interview, we get memories from journalists on the topic. Politicians feature largely.
A chapter tells us about interviewing for websites particularly, keeping questions short and sticking to the point, and how interviews by e-mail or instant message work.
At all times we are reminded that Public Relations persons get paid to make interviews happen and would rather you stuck to what is on the press release than ask about anything unrehearsed. The job of the journalist may be to go along or to probe deeper, depending on the publication.
I also found a chapter on the laws relating to publishing material, including libel, and on obtaining it legally, and when it might be ethical to gain information in underhand ways. Ethics are clearly essential to trained journalists and are a main difference between pros and citizen journalists.
I borrowed this book from the Dubin Business School library. There is a newer edition which I have not yet seen. This is an unbiased review.