Janet Marlows Approach Guide Selfpublished not published by Mel Bay  Marlows list of publications with Mel Bay including no Approach Guide httpwwwmelbaycomauthorsaspauthor  Amazoncom lists the publisher as Janet Marlow Music LLC April  not Mel Bay httpwwwamazoncomPlayingTenStringGuitarApproachGuitaristsdp  I happen to have a copy of Marlows Approach Guide in its DVD format clearly selfpublished