Penguin Readers is an ELT graded reader series for learners of English as a foreign language. With carefully adapted text, new illustrations and language learning exercises, the print edition also includes instructions to access supporting material online. Titles include popular classics, exciting contemporary fiction, and thought-provoking non-fiction, introducing language learners to bestselling authors and compelling content. The eight levels of Penguin Readers follow the Common European Framework of Reference for language learning (CEFR). Exercises at the back of each Reader help language learners to practise grammar, vocabulary, and key exam skills. Before, during and after-reading questions test readers' story comprehension and develop vocabulary. Visit the Penguin Readers websiteExclusively with the print edition, readers can unlock online resources including a digital book, audio edition, lesson plans and answer keys. Companies and leaders often have great ideas. But, before they can turn their ideas into successful products, they need to answer some big questions. Now there is a way to answer these questions without weeks or months of meetings and discussions. It is called "the sprint".

Jake Knapp and John Zeratsky are writers and designers who help people make time for what matters at the office and in everyday life. They're the authors of the New York Timesbestseller Sprint, and the creators of Time Dorks, a popular newsletter about experiments in time management.

Jake spent ten years at Google and Google Ventures, where he created the Design Sprint process. He has since run more than 150 sprints with companies like Nest, Slack, 23andMe and Flatiron Health. He lives in San Francisco with his wife and sons.