In academic writing you often have to summarise part of a book or journal article. It is one of three ways of using another writer's work in your own (the other two being quotation and paraphrase). Your summary may be just one or two sentences, to explain the main idea of the article or compare it with another text, or it might be much longer, up to 50% of the original. This podcast explains the steps in writing a summary, as well as giving some useful language for summary writing.