In an email initially shared by Pybites, Bob provides a structured approach to learning new libraries efficiently, particularly for Python developers. The guide suggests a step-by-step process starting with a quick read of the main documentation, followed by installing the library and exploring it interactively using tools like Jupyter notebooks. Bob emphasizes the importance of setting specific goals for using the library to address real-world needs and encourages developers to build a project to deepen their understanding. The process concludes with teaching the newly acquired knowledge to others, which can further solidify understanding and reveal knowledge gaps. Bob also highlights the value of embracing challenges and learning from troubleshooting as part of the process, while noting that teaching can be done through various formats such as live coding, videos, or blog posts.