This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
All the interviews were done in person in two or three two-hour sessions. I had a basic list of questions which I'd then customize for each interviewee based on specific aspects of their work that I wanted to ask them about or specific topics that I thought they'd have particularly interesting insights about. And then during the interview I tried to have an actual conversation about things rather than just question, answer, question, answer.