> ## Documentation Index > Fetch the complete documentation index at: https://docs.chunkr.ai/llms.txt > Use this file to discover all available pages before exploring further. # What is Layout Analysis? > Understand the importance of layout analysis in document processing Layout analysis is a crucial step in document processing that involves analyzing and understanding the spatial arrangement of content within a document. It helps identify and classify different regions of a document, such as `text`, `table`, `headers`, `footers`, and `pictures`. Basically, it tells us where and what is in the document. ## Why is Layout Analysis Important? Layout analysis serves several key purposes: * **Structure Recognition**: It helps identify the logical structure and reading order of a document * **Data Extraction**: By identifying specific regions (like tables, headers, or paragraphs), we can use specialized extraction methods for each type, improving accuracy * **Better Chunking**: Layout elements allows us to identify sections of the document and generate better chunks. * **Citations**: It allows LLMs to cite the correct region of the document, which can then be highlighted for a better experience. Layout Analysis ## Segment Types Chunkr uses a two way vision-grid transformer to identify the layout of the document. We support the following segment types: * **Caption**: Text describing figures, tables, or other visual elements * **Footnote**: References or additional information at the bottom of pages * **Formula**: Mathematical or scientific equations * **List Item**: Individual items in bulleted or numbered lists * **Page**: Entire page (`segmentation_strategy=Page`) * **Page Footer**: Content that appears at the bottom of each page * **Page Header**: Content that appears at the top of each page * **Picture**: Images, diagrams, or other visual elements * **Section Header**: Headers that divide the document into sections * **Table**: Structured data arranged in rows and columns * **Text**: Regular paragraph text * **Title**: Main document title