How do I report content errors in an iBook? How do I report errors in the content of an iBook that I've purchased? The feedback and problems reporting that I've found seems focused on getting a refund, not on repairing errors in the content.

(Note that the same errors are present in the Kindle editions of the book.)
You can somehow try and contact the book publisher or you can try contacting iTunes support.

As you say the issue is persistent I would recommend getting in touch with the book publisher by email.