Explore Clojure's approach to data transformation in this conference talk from Philly ETE 2016. Dive into the world of functional programming and immutable values, comparing sequences, reducers, and transducers to traditional imperative methods. Learn how to write more concise, bug-resistant, and reusable code by leveraging Clojure's foundation of immutable values and persistent collections. Discover techniques for handling nested maps, deep inspection, and retrieval, while addressing state and concurrency challenges. Examine the benefits of generic data interfaces, protocols, and multimethods in separating state and identity. Through practical examples and code demonstrations, gain insights into optimizing nested sequence operations, removing intermediate sequences, and unleashing the power of transducers to revolutionize your data processing workflows.