Suggested purchase by Ukulele Tutor, is seemingly the best book according to him for the stage that the family member is at to learn after learning the guitar. Is being used a lot and no complaints so far.
First use took a strip off the bottom of a fitted skirting board with the vinyl still in place, thickness of the vinyl, now the vinyl is under the skirting board rather than against it with a hump of vinyl in front of it. Important experience is the cutters will damage the surface of the vinyl so a sheet of something is required between the cutter and the vinyl to protect the vinyl, if cutting with the vinyl in place. Can see endless possibilities for this new type of tool. Especially with the multitude of cutters available.