This article presents a case study to illustrate how children with attention-deficit/hyperactivity disorder (ADHD) can be assessed and successfully trained using neurofeedback. There is established efficacy for using neurofeedback to treat ADHD ( Arns, De Ridder, Strehl, Breteler, & Coenen, 2009 ; Gani, Birbaumer, & Strehl, 2009 ; Gevensleben et al., 2009 ). Indeed, the American Academy of Pediatrics gave biofeedback Level 1 efficacy in its 2012 review ( American Academy of Pediatrics, 2012 ), the same level of efficacy as is given to medications. The other condition that has sufficient randomized controlled studies to establish efficacy for electroencephalogram biofeedback is epilepsy ( Tan et al., 2009 ). This case is presented to share techniques that will help clinicians conduct neurofeedback appropriately so that good results are obtained. The future of our field depends on every practitioner doing a quality job with excellent outcomes.