The book "Ontario Reader: Book Four" is a collection of literary works intended for high school students in Ontario. In this book, the authors offer the reader a wide selection of texts of various genres - from short stories and poetry to scientific articles and historical essays. Each work is supplemented with explanations, tasks for the development of speech and thinking. "Ontario Reader: Book Four" promotes the development of speaking skills, broadens the reader's worldview and helps to cultivate a love of literature. This book has become an integral part of the school curriculum in Ontario and helps students improve their knowledge and skills in the field of language and literature. As part of the "Ontario Readers" series, Book Four is distinguished by a quality selection of texts that will engage the reader and stimulate him to expand his knowledge and intellectual development.