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.

No Rules Rules, a Level 4 Reader, is A2+ in the CEFR framework. The text is made up of sentences with up to three clauses, introducing more complex uses of present perfect simple, passives, phrasal verbs and simple relative clauses. It is well supported by illustrations, which appear regularly.

Reed Hastings started Netflix with Marc Randolph in 1997. Their company has completely changed how we watch TV and films. In this book, Reed explains the secret to the company's success and how at Netflix, there really are NO rules.