H.O.S 101 How to fill out a logbook 

Here I will give a short break down of how to fill out a paper log, even if you use a electronic log you still have to have a paper backup and atleast know the basics of how to use it, hopefully you don't suffer such device failures, but if it happens, this is a basic overview of how to keep legal. this is not 100% inclusive of every regulation that there is, but if your trucking in america, this is enough information that you can probably have enough understanding to stay legal and stay safe.