One for the ministers (of any fellowship or affiliation), ministerial students, chaplains and the like. (You get to chose if you are "like".)
In your hands is a small book vital to your ministry. Small enough to pop in a jacket pocket or clutch purse. What is it? (or them.)
I'll chime in if this attracts attention. Â A context or your reasons would also help, and -- as with Desert Island Discs -- I'll grant the Bible as a given.