A book about environmental protection, social rights, and economic well-being combining the passion for sustainability with the passion for project management. The handbook details an organized and structured methodology for managing projects sustainably and includes the following subjects: general definitions, environmental sustainability, social sustainability, economic sustainability, business environmental sustainability, types of sustainable projects, difference between investment and project, how to manage a project sustainably, and glossary of terms used in sustainability. Only some projects are sustainable by nature, but all projects can be managed sustainably.