Music instructional book set [Over 70 books!]

This is a set of music instruction books. Please check the contents in the images.
There are mostly guitar instruction books included.
I am listing them as a set because there are too many to sell individually.
The conditions vary from like-new to showing signs of use, but it is unlikely that there are any scratches at a level where you can't read the content.
I will include the accompanying CDs as they were stored in CD cases. (However, I cannot guarantee that all CDs are intact.)
If any CDs are missing, some instruction books may have links to audio sources on their official websites, so please check there.

With this quantity, the price comes out to approximately 500 yen per book on average.
Due to the mix of various conditions, I have set the price considerably low.

* No returns or complaints will be accepted.
* Individual sales are not accepted.

I am willing to consider some discount.