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E-books as well as PDF data are not returnable. However, if there is damage to the data or if there is a problem with viewing, then please contact us.
If the problem is not solved though the environmental conditions recommended by our company are met, we will give a refund if the problem is notified within one week of purchase.

If there is any damage with a print on-demand book, please contact us. If notified within one week of purchase, we will immediately exchange the damaged product. For more information, please see the terms and conditions.

About Quality

When the manuscript provided from the author is computer data or when the data is edited by this company, there will be no difference in quality in comparison to regular publications. However, in cases where the copies are created from paper, particularly copies of old books, they will be copied as they are so any problems on the original pages will still be present. Also, we apologize beforehand that in such cases, the performance of the e-book search engine will not be as functional.