Intermediate level

Series

Easy Reader B (A2) ( Based on a vocabulary of 1200 words )
Easy Reader C (B1) ( Based on a vocabulary of 1800 words )
Teen Reader 3 (A2) ( Based on a vocabulary of 1200 words )
Teen Reader 4 (B1) ( Based on a vocabulary of 1400-1800 words )
Easy Classics B (A2) ( Based on a vocabulary of 1200 words )
Easy Classics C (B1) ( Based on a vocabulary of 1800 words )