Marlon Brammer, author of the book Healing Awareness gives also several workshops and courses. I took the Reiki course with her and the way she teaches is amazing. Easy and clear and she makes it all very accessible for everyone.
I can recommend her classes to anyone if you have the chance to take her workshops in person, go for it.
Buy this book, it will change your life. The method is easy and there are many exercises you can do, with instant results!