This book provides an overview of pronunciation teaching and learning practices in secondary schools, providing insights into secondary school learners' needs, expectations and motivation regarding the importance of learning English and particularly English pronunciation. It presents a summary of the research on L2 pronunciation acquisition, teaching techniques and factors affecting the learning process as well as the results and conclusions of a longitudinal study conducted in a Polish secondary school. The study indicates that learners consider pronunciation a crucial component of English learning and a predictor of successful communication. Moreover, it shows that accuracy is highly valued by learners, and that systematic and regular pronunciation instruction, even if devoted mainly to segments, has the potential to contribute to the overall improvement in learners' communicative competence and their confidence as speakers and users of English. The book is based on the first-hand experience of a teacher-researcher.