A dog with kennel - anxiety issues - help is needed.

I got a rescue dog from a country kill shelter who is very sweet, doesnt know what a toy or ball is, apparently lived outside, and was probably abused by a male. I got a kennel and went to a concert and came back home to torn up carpeting, shuttered blinds, gnawed door, destroyed kitchen with food left (Maggie would never leave food). left him today and he again got out, but someone was home. He chewed living room carpet. I have a call into training.But since this is an issue when i’m not around, how easy will this be? He goes on walks with my next door neighbor and their dog. What are the best dog training books?