Multi-cloud is a strategy that employs multiple cloud computing services from different vendors to create a diverse and flexible cloud infrastructure. Coursera's multi-cloud catalogue teaches you how to manage, integrate, and effectively utilize multiple cloud services to optimize your organization's cloud computing. You'll learn about the diverse cloud services from providers like AWS, Google Cloud, and Azure. Additionally, you will understand how to balance workloads, ensure data security, and manage costs across different cloud platforms. You'll also dive into the benefits and challenges of multi-cloud environments, giving you the comprehension to leverage the best from each service for your specific needs.