User:SOTO/Forum Archive/The Panopticon/@comment-4139960-20130410195554/@comment-6433721-20130418041535

User:SOTO/Forum Archive/The Panopticon/@comment-4139960-20130410195554/@comment-6433721-20130418041535 The ISBN thing only works when they were bought in a group, so if they miscalculated somehow it could break down.

Some third party sites like Goodreads allow users to aggregate a publishing order.