In nautical|lang=en terms the difference between logbook and logbook

is that logbook is (nautical) a book in which measurements from the ship's log are recorded, along with other salient details of the voyage while logbook is (nautical) a book in which measurements from the ship's log are recorded, along with other salient details of the voyage.

In by extension|lang=en terms the difference between logbook and logbook

is that logbook is (by extension) a book in which events are recorded; a journal, especially of travel while logbook is (by extension) a book in which events are recorded; a journal, especially of travel.

In uk|lang=en terms the difference between logbook and logbook

is that logbook is (uk) a record of the ownership, and licensing of a motor car while logbook is (uk) a record of the ownership, and licensing of a motor car.

As nouns the difference between logbook and logbook

is that logbook is (nautical) a book in which measurements from the ship's log are recorded, along with other salient details of the voyage while logbook is (nautical) a book in which measurements from the ship's log are recorded, along with other salient details of the voyage.