The initial idea to write a book on oncoplastic techniques was raised through a meeting on breast cancer treatment in Saalfelden, A- tria two years ago. Contrary to the rather mir role breast surgery is conceded today compared to other treatment modalities the s- geons role on the further outcome of the disease is crucial and never compensated by radiation or adjuvant therapy. Whereas surgery a decade ago was merely excision of the cancer and closure of the wound leaving behind a mutilated breast in many women, the advent of oncoplastic surgery completely changed the modern surgical approach to breast cancer. The concept of oncoplastic breast surgery combines oncologic - mor resection - either breast conservation or mastectomy - with t- ditional or less traditional plastic surgical techniques. The primary goal is to achieve an optimal cosmetic result with long time local tumor control. Some (n - randomized) studies available in patients following breast conservation oncoplastic surgery showed tumor resection to be associated with wider free margins, less patients needing re-operation surgery for involved or close margins, a widening of the indications for breast conser- tion surgery, a low complication rate and at least an equal local recurrence rate. There is doubt that oncoplastic breast surgery experienced a r- id rise with more patients demanding this kind of surgery. However, a profound kwledge of the different oncoplastic techniques is - sential for the outcome.