The best moose hunting book I've read is called "hunt Alaska now!" by Dennis Conifer ....but obviously speaks of Alaska moose and some of that info is outdated. Very good read regardless. Best video on moose hunting that I've seen is call "Love thunder and bull 2".....but again it is aimed toward Alaskan hunters. The tough part in your case is you cant start your hunt until the rut is over, which is when bulls have nothing to do and all day to do it. Maybe they can be called that late in NH, but I've never hunted for moose this late, nor in NH.