Planner Sighting: Hidden in the Library

Just the other day, I spotted a planner-like binder I had never noticed before.  One of our patrons—a regular for a few years now—was carrying what looked like a planner.  I had never noticed it before, so I don’t know if carrying it is something new for him or if he’s always had it and kept it in a bag.  But there it was, in his hand the other day, and the day after that too.  Of course I eyed it and tried to see if it was an official planner, but I can’t seem to bring it up in conversation for fear that the patron and/or my coworkers would think I’m nuts.  (Well, my coworkers already think I’m an organizational nut, but we keep that hidden from the patrons as best we can.)  I’m not sure that it is an official planner, and I don’t think it’s a Filofax.  But I can say that it has a very similar look to the Slimline Guildford—it is a thin binder (thinner than the personal but larger than the slimline, more like the compact Guildford might be is one were to be made), black, and has that well-worn leather look.  I don’t know what he uses it for, maybe just notes, as there are a lot of papers stuffed into it.  Perhaps one day I’ll brave a conversation about it.  Until then, I’ll just admire it from afar…