This document summarizes a presentation on schema design in MongoDB. Some key points covered include: - MongoDB uses collections instead of tables and documents instead of rows. - Schema design focuses on how an application will access and use data, rather than on data storage. - Embedded documents are useful for one-to-one relationships but can impact write performance. - Linked data using references is more flexible and ensures data integrity. - Examples demonstrate different approaches to modeling one-to-one, one-to-many relationships and categories.