Designing an Online Bookstore

1. Describe how you would design and implement a recommendation engine for the online bookstore. Compare collaborative filtering and content-based filtering approaches, and explain how you would handle data collection, processing, and scalability issues.

2. How would you design the database schema to efficiently handle various types of books, including different editions, formats (e.g., hardcover, paperback, ebook), and manage inventory across multiple warehouses? Describe the tables and relationships involved.