foe saying that guitars are usually made of atleast 2 or more peices of would for the body i was just wondering what companies used to set these two or peices of wood together so strong and with barely any joining lines between the wood( unless you look rather hard?

anyone care to shed some light of this situation plz
I think they pretty much glue two wood block together first before cutting out the guitar form. It's can pretty be any kind of wood glue.