The Architecture Books app is the best reference for anyone interested in the field of architecture. It offers a lot of information about various aspects of the profession. From the basics to the more advanced topics, it covers everything that you need to know. The app is organized in a way that makes it easy to find the information you need. You can browse through different categories or search for the specific topic you want to learn more about.

This is free and easy to use, so you won't need to spend a lot of money to get the best experience.