This book enables a general overview on specific subjects. It constitutes a useful tool which offers information allowing the reader to progress, always from an ethical perspective, and to provide a global medical and esthetical treatment. Laser and energy based treatments are the angular stone of cutaneous facial ageing management. This book updates our knowledge on different laser and apparent technologies, such as pulsed lights, LED, radiofrequency, ultrasounds, as well as on cosmetics, injections and their eventual interactions. Moreover, it details the evaluation methods of their effects on skin along with the particularities of treating African, Asian and Mediterranean skin. The books could not have been completed without the international and French authors who participated by sharing their knowledge, and contributed to each chapter with their attention to detail and their qualitative expertise. We now let it in your hands, so that it may pass along its experience and encourage you to question, progress and offer our patients the best of laser, lights and energy based devices.