I've have two logbooks. The one I started out with a long, long time ago (which I outgrew) and my professional one. At some point I stopped writing in the small one and started writing in the bigger one.
When I interviewed at TransStates, ExpressJet, and SkyWest (where I've been for six years now), I took both logbooks to the interviews.
TransStates was interested in my endorsements but the other two weren't, but they all looked through my logbooks.
I always did my best to keep them accurate and that was the best I could do. Nobody is going to go back through them with a fine tooth comb. It is on the honor system.
A couple years ago though I started using an electronic logbook,
Logbook Pro Pilot, and I spend maybe five minutes on it a month. I just download my flight schedule from SkyWest and upload it into
Logbook Pro Pilot, but it is just as easy to enter it by hand. If I was interested it would track my landings, night time, instrument time, etc., but I'm not that interested in it anymore.
How much time you want spend on you logbook is up to you.
As for interviews and job searching, keep it professional but it doesn't have all be in ONE logbook. You have better things to do with your time...like fly!
Regards,
Jeffrey