This book helps readers understand the main issues, challenges, strategies, and solution methods in Aggregate Planning (AP), an important part of Supply Chain Management. The design of the book supports readers in the fields of engineering and management to learn practical knowledge about AP in a short look. Moreover, it delivers materials that consider multiple criteria in an AP model that is also required in sustainable developments. In spite of the simple structure of the book, it approaches more complicated mathematical models with single/multiple objective functions to include more practical decisions in AP. It addresses those issues without increasing the complexity of the book to keep it useful for practitioners.