This page presents an overview of dictionaries in programming, detailing their structure, creation, and operations. It emphasizes that keys are unique and values can be duplicated. The text explains h...This page presents an overview of dictionaries in programming, detailing their structure, creation, and operations. It emphasizes that keys are unique and values can be duplicated. The text explains how to create dictionaries using curly braces or the `dict()` function, along with operations for accessing, updating, and deleting items. Additionally, it covers iterating through keys and values and introduces the concept of nested dictionaries, which have other dictionaries as their values.