A few come to mind: 1) Which publisher are you using and why? 2) Did you use any outside help for design, proofreading, editing, etc. or if not, how was the experience doing it on your own? 3) Do you have any plans regarding the book after it's been published, i.e. will you do any book presentations or podcasts or marketing of any kind?

And hey, don't worry, none of us really know if anything we do makes sense in the end. But writing and publishing your own material as an actual, physical book - that's one cool thing to do IMO.