Click here for Washington Post article about neurofeedback

For more information about neurofeedback:

Interesting Books:
The Body Keeps the Score: Brain, Mind, and Body in the Healing of Trauma, by Bessell Van der Kolk. Written by a preeminent trauma specialist, chapter 19 in this book is dedicated to neurofeedback as a helpful treatment for trauma.
A Symphony in the Brain by Jim Robbins. This is a interesting book about the history and development of neurofeedback. 
Neurofeedback in the Treatment of Developmental Trauma: Calming the Fear-Driven Brain by Sebern Fisher. This book presents a comprehensive overview of the effect of childhood trauma on the brain and how neurofeedback can help regulate and heal the brain.
The Neurofedback Solution: How to Treat Autism, ADHD, Anxiety, Brain Injury, Stroke, PTSD, and More by Stephen Larsen. Each chapter looks at a specific issue and is written by different experts.
Healing ADD: The Breakthrough Program tha Allows you to See and Heal the 7 Types of ADD and Change Your Brain: The Breakthrough Program for Conquering Anxiety, Depression, Obsessiveness, Anger, and Impulsiveness both by Daniel Amen. Dr. Amen is an ADHD specialist who uses neurofeedback as part of his treatment options.
Conquering Concussion: Healing TBI Symptoms with Neurofeedback and Without Drugs by Mary Lee Esty & C.M. Shifflett. This well-written and interesting book will tell you all about TBI, post-concussive symptoms, and how NFB can heal the brain.
Doing Neurofeedback: An Introduction by Richard Soutar and Robert Longo. This book presents some of the basics about neurofeedback, as well as information about quantitative EEGs (or brain maps).
Getting Started with Neurofeedback by John Demos. This is a nice introductory book about neurofeedback.

Dr. Walker and Dr. Lawson wrote an interesting article in 2013 looking at the effectiveness of neurofeedback for treating depression. They report getting significant improvement  with only 6 sessions.  You can read the full article by clicking here.