Scott Keck Warren discusses how to write cleaner, more resilient code using value objects. Value objects are structures that represent typed values without a concept of identity and are immutable. When designing value objects, three main characteristics are important: structural equality, immutability, and self-validation. Value objects are useful for writing code that is easier to read and reason about, as well as for preventing duplicate code. Additionally, value objects help to increase type safety and reduce the number of classes that need to be maintained.