Breast augmentation is a complicated process that goes far beyond placing an implant in a pocket. The implants and techniques of breast augmentation have undergone significant evolution over the past 50 years, and this is now one of the most commonly performed cosmetic procedures worldwide. Advancements in shell barrier technology and silicone form stability have improved implant functional characteristics and mechanical properties. Tissue-based planning uses measurable patient characteristics to match an implant to the patient’s tissue for greater control of the aesthetic result while minimizing complications. The realization of three-dimensional modeling systems allows a more sophisticated approach to implant selection and establishment of patient expectations. Specific surgical techniques, including pocket plane and incision location, ensure ideal implant placement. Optimal patient outcomes are achieved by integrating patient education, implant selection with tissue-based planning, refined surgical technique, and detailed postoperative recovery. This review contains 12 figures, 6 tables, 1 video, and 74 references. Key Words: breast augmentation, breast implants, breast implant-associated anaplastic large cell lymphoma, dual plane, capsular contracture, saline implants, silicone implants, tissue-based planning, three-dimensional imaging