What privacy issues or other legal issues could arise if I publish a book that has pictures and stories including other people?

I understand that you will self-publish or "vanity" publish this work, rather than through trade channels. This distinction matters because all major commercial trade publishers vet their works and have legal staffs that are designed to make sure that these kinds of issues are dealt with. It is difficult, without a review of the book, to anticipate the kinds of issues that you may face. Generally speaking, the greatest risk you face in any non-fiction work is a libel claim. Related issues are "false light" claims. One person's funny anecdote breeds another person's blood feud. Even under the most innocent of circumstances, it is difficult to predict how others may react to having their foibles exposed. The prophylactic measures that professional publishers use are equally available to you. First, have the book reviewed by an outside professional. Second, check your insurance and see to what extent it covers defamation and "advertising injury" claims; if you don't have such coverage, get it. We practice in this area and would be happy to be helpful to you. Let us know if there's anything you want us to do.