Penguin Readers is a graded reading series for English Language Teaching (ELT) markets, designed for teenagers and young adults learning English as a foreign or second language.

With carefully adapted text, new illustrations, language practise activities and additional online resources, the Penguin Readers series introduces language learners to bestselling authors and compelling content. Titles include popular classics, exciting contemporary fiction, and thought-provoking non-fiction.

Going Solo, 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.

Roald Dahl flew planes in the Second World War (1939- 1945) when Germany, Italy and Japan fought against Britain and other countries. Going Solo is Dahl's time with the RAF (Royal Air Force). He writes, "I did not need to leave out anything here because every moment was, to me, totally interesting".