This set includes Mathematics I+A and II+B+C, supporting efficient learning. - Series Name: Yellow Chart Method Mathematics - Book Type: Mathematics I+A - Book Type: Mathematics II+B+C - Publisher: Chart-shiki - Condition: Good Thank you for viewing. I bought these for exam preparation but no longer need them, so I'm selling them! They are almost unused, so the condition is clean. Please be aware of this. If you have any questions, please leave a comment!