SECOND EDITION UPDATED APRIL 2017. Sketch Engine is an online corpus resource used by students, teachers and language professionals in many parts of the world. The book, "Discovering English with Sketch Engine", is intended primarily for students and teachers of English as a foreign language. As the reader undertakes hundreds of guided discovery tasks, many aspects of language and linguistics are taught and experienced. In the process, the reader acquires the practical skills of working with corpus software, and processing and interpreting the data that searches return. This book takes its readers on a voyage of guided discovery that ultimately equips them with the knowledge and skills to formulate, ask and solve language queries about morphology, vocabulary, grammar, discourse, pragmatics and stylistics. This is a skill for life.