Clojure Koans is a book that serves as a guide for anyone who wants to learn Clojure, a modern programming language that runs on the Java Virtual Machine. The book is written by Aaron Bedra and Russ Olsen, who have been working with Clojure since its inception.

The term “koan” refers to a paradoxical statement or question in Zen Buddhism, which is used to provoke deep thinking and insight. In the context of the book, the authors have created a series of “koans” or problems, that challenge the reader to solve them using Clojure.

The book is structured in a way that allows the reader to work through the problems at their own pace, starting with the basics of the language and gradually building up to more complex concepts. Each koan is presented as a test case, which the reader must solve by writing Clojure code that passes the test.

The problems cover a wide range of topics, including basic data types, collections, functions, and macros. The authors have taken care to ensure that each problem is both challenging and relevant to real-world programming scenarios. In addition, the solutions to each problem are presented in a clear and concise manner, with explanations that help the reader understand the underlying concepts.

One of the key features of Clojure Koans is its interactive nature. The authors have created a web-based interface, which allows the reader to work through the problems in a browser, without the need to install any software. The interface also provides immediate feedback on the solutions, helping the reader to learn from their mistakes.

Clojure Koans is an excellent resource for anyone who wants to learn Clojure. The book is well-written, with clear explanations and plenty of examples. The problems are challenging, but not overwhelming, and the interactive interface makes the learning experience fun and engaging. Whether you’re a beginner or an experienced programmer, Clojure Koans is a must-read for anyone interested in learning this powerful and elegant language.