Summary

In this chapter, we discovered the concept of immutability. We learned about Clojure's simple data types, as well as their implementation on different host platforms. We discovered the most common types of collections and sequences: maps, sets, vectors, and lists. We saw how to use them with generic collections and sequence operations. We learned how to read and update complex structures of nested collections. We also learned about the standard functions for using collection data structures, as well as more advanced usage with deeply nested data structures. In the next chapter, we will learn advanced techniques for working with functions.