The IoT Design Manifesto outlines 10 principles for the responsible development of IoT products and services. It was created by a group of designers to address issues like a lack of regulation and poorly designed products that reflect poorly on the IoT industry. Following the principles of the manifesto, like prioritizing security, user privacy, and transparency, helps ensure IoT products are useful to people and developed with stakeholders in mind. The manifesto advocates for empowering users and designing products to last, with the overall goal of using technology design to help people and society.