I have written books for Mel Bay Publications and guitar ensemble arrangements for Alfred Music. Here are links to them:
https://www.melbay.com/Author/Default.aspx?AuthorId=38238
www.melbay.com/Products/94674/easiest-guitar-theory-book.aspx
www.alfred.com/Products/Belwins-21st-Century-Guitar-Ensemble-Series-Evil-Ways--00-ELM02015.aspx
www.alfred.com/Products/Belwins-21st-Century-Guitar-Ensemble-Series-Peter-Gunn--00-ELM02014.aspx