There are so many wonderful books very helpful in connecting with your Angels. I've included some useful in exploring past lives and healing techniques as well. Any of Doreen's many books are very good but these are helpful for beginners.
ANGELS 101: An Introduction to Connecting,
Working and Healing with The Angels
by Doreen Virtue
ANGEL MEDICINE
by Doreen Virtue
IN THE ARMS OF ANGELS
by Joan Wester Anderson
ANSWERS FROM THE ANGELS
by Terry Lynn Taylor
THE WHISPERS OF ANGELS
by Annette Smith
MANY LIVES, MANY MASTERS
by Brian Weiss
JOURNEY OF SOULS
by Michael Newton
A GIFT FOR HEALING
by Deborah Cowens
ANCIENT HEALING TECHNIQUES
by Douglas DeLong
ASTRAL TRAVEL FOR BEGINNERS
by Richard Webster