The Handbook to Sustainable Sourcing is a guide for procurement professionals to deliver truly sustainable sourcing. The focus of sustainability has traditionally been internal, but now procurement organizations are adopting a more data-driven approach and engaging with the broader supply base. The report emphasizes the importance of sustainability rhetoric matching reality and taking a risk-based approach while being aware of unintended adverse consequences. Risk assessments can be subject to natural human biases, but simple countermeasures can redress the balance. Going forward, procurement organizations will need to increase their focus on sustainability and take a more proactive approach.