Soft tissue filler injection is one of the most commonly performed cosmetic proce-dures that has greatly progressed in the last 10 years.

However, with progress, there are no precise guidelines; rather, when administering filler injections, following the previous guidelines may result in the selection of the wrong procedures.

The purpose of this book was to (1) identify the correct procedure in various ap-proaching methods and (2) show the progress in identifying the correct method of filler injection.

The authors tried to identify the correct method based on anatomy. Precise anatomical knowledge would lead to efficient and safe injection guidelines.

The components of this book are as follows; anatomist professor’s dex_x_x_x_x_ion about the precise anatomy for filler injection, plastic surgery specialist and dermatology specialist’