This document discusses how to make polite requests in English using "could" and "can." It provides examples of requests using these terms, such as "Could you hurry it up, please?" and "Can you turn off the fan?" It also discusses using "would you mind" to make indirect requests in a polite way, for example "Would you mind helping me with this project?" The document includes links to additional resources on English grammar, politeness, and developing speaking skills.