The document discusses Rackspace SDKs that are used under the hood of popular cloud provisioning systems. It provides an overview of the SDKs for different programming languages that handle tasks like authentication, pagination, polling and retrying to interface with cloud APIs. It highlights how the SDKs are used in tools like Puppet, Jenkins, Chef and help enable continuous delivery. The speaker advocates for the SDKs and asks for feedback on how Rackspace can better support DevOps tools and processes.