Google NotebookLM is an artificial intelligence research assistant that helps users analyze and understand research materials. It can summarize and extract key points from documents, answer questions about those documents, and generate ideas for research. NotebookLM is easy to use; users can upload documents and ask questions about them. The tool provides answers based on its understanding of the uploaded content. Key features of NotebookLM include its natural language processing abilities, customizable settings, and integration with Google Workspace. NotebookLM can help users save time, improve understanding, and generate new research ideas; however, users should always verify information provided by the tool with their own research.