Communication with the dead book recommendations / sources?

Scrying you can do your own research if you care to, but it basically helps invocation. Invocation just, like summoning, visibility, communication.  

  If you have an altar, you'll want to do it at your altar, if not, somewhere private or quiet. 

...

Anyway, so there's multiple ways to scry, if you're a water sign, you'll have a better chance at Scrying through water. 

At night, take a dark glass (large/flat bowl) pour some water , light candles around the bowl so you can actually see the reflection of the water. 

Another way, is through mirrors. I have three mirrors that surround me with candle light. With Scrying you usually wanna let go of your physical form to actually try and communicate. (If you have a dissociative disorder that'll be easier) 

If you use a mirror, you have to make eye contact with yourself but look with your peripheral vision. 

I don't have any books to suggest , the grimoires I have don't mention anything about communication. 

There's more but I don't wanna rant. :))) 

Ahhh sorry i'm getting to this a bit late, I'm not use to the notifications on here but, hank you so much for that!!!