# Reference Documents

We recommend the following notebook as a guide to [semi-structured RAG](https://github.com/langchain-ai/langchain/blob/master/cookbook/Semi_Structured_RAG.ipynb).

We also recommend the following notebook to explore various parsing techniques for [PDFs](https://github.com/cohere-ai/cohere-developer-experience/blob/main/notebooks/guides/Document_Parsing_For_Enterprises.ipynb).

Various LangChain-supported parsers can be found [here](https://python.langchain.com/docs/how_to/document_loader_pdf/).

## Install Dependencies

```python PYTHON