In the epilogue, Coyle takes the core concepts described in the rest of the book and applies them to various fields.

In the field of education, he talks about the “Reading Wars”—the conflict between two approaches to literacy instruction: whole language versus phonics-based instruction. The whole language movement believes that students should learn to read by focusing on meaning and context, while the phonics-based approach emphasizes the importance of teaching students letter-sound relationships and decoding skills. Coyle argues that rather than debating which approach is better, it is important to recognize that both approaches have their merits and should be integrated in a balanced manner. He claims that whole language creates ignition whereas phonics creates deep practice.

In the field of business, Coyle describes the culture of Toyota factories, where the concepts of intentional practice and feedback loops are applied to improve performance and efficiency. This approach, known as “kaizen,” involves continuous improvement and a focus on small, incremental changes.

In the field of psychology, Coyle discusses The Shyness Clinic, where shy people learn to work through their social anxiety and develop interpersonal skills through deep practice.