Callan Method Student Books English/Japanese

1x Book 2: Stage 3&4
1x Book 5: Stage 9&10

Previous editions with two stages in one book;they are now sold seperately and are therefore much more expensive.
Used but in good condition.
These books are quite rare and not easy to come by.
The price is for both books (£7.50 each), which is very cheap!
The Callan Method is a great way to learn/practise English.
(I am also a teacher; do contact me if you're interested in lessons).