An outline, often referred to as a sketch, is a structured plan that organizes ideas and information in a hierarchical format. It typically includes main topics, subtopics, and supporting details, helping to clarify the relationships between different points. Outlines are commonly used in writing, presentations, and project planning to ensure a logical flow of information. Creating an outline can enhance productivity and focus by breaking down complex subjects into manageable parts. It serves as a roadmap for writers and speakers, guiding them through their material. Outlines can be created using various formats, such as bullet points or numbered lists, depending on personal preference and the nature of the content.