What types of team/projects have you encountered while doing
your research for the book, and which ones have had the most
impact on the findings in your book?
I think that, of course , in the big picture it applies to agile teams
and not non-agile teams, but are there particular organizations of
agile teams to which your lessons apply best?
I'm not sure if I understand your question completely. We talked to many agile teams of different sizes and in different industries for the book, and were actually surprised at how much they had in common with their solutions to testing challenges. The values, principles and practices we promote in the book would work on non-agile projects also, of course. Most of these ideas aren't new to testing. We feel one difference is the whole-team approach to testing, rather than having testers responsible for testing, programmers responsible for coding, adn so on.
Co-author, with Janet Gregory: Agile Testing: A Practical Guide for Testers and Agile Teams (Addison-Wesley, 2009) http://lisacrispin.com