Factual: Rivers 4+

This six-level series of Macmillan Factual Readers allows young English language learners to explore a variety of fascinating real world topics. Each reader has been carefully graded to reinforce the main structures of vocabulary covered in most major language courses.
The use of the plus symbol (+) highlights the increased level of challenge in the language compared with a standard reader. All readers include a glossary with explanation of key vocabulary.