@Mitch Snyder (Faithlife), this is probably one for you:
This book, https://www.logos.com/product/431437/the-works-of-william-perkins-volume-6?utm_source=faithlife.com&utm_medium=website&utm_campaign=faithlife&utm_content=reviews-431437 presumably "in prodution", seems to be a 100% redundant duplicate of this existing book: https://www.logos.com/product/168947/the-works-of-william-perkins-volume-6 - @Steven Leavitt found it and put it as a question on the product page. Please remove it - you may want to offer any PrePub-takers a rebate on the existing book (and if anybody looks for learnings in way of quality assurance, it might help to put the actual author into the author field in the shop metadata, not the editor).
Could it be that this is also true for other books published by Reformation Heritage Books that have recently appeared on the pre-pub page? Some books in this batch might be (slightly?) revised edtions but with others I seriously doubt that there is any difference.
E.g.:
https://www.logos.com/product/431354/the-christians-reasonable-service?queryId=e705459fd72a9b66194fe68cb9d50dbf (pre-pub)
https://www.logos.com/product/26936/the-christians-reasonable-service?queryId=e705459fd72a9b66194fe68cb9d50dbf (already in Logos; different publication date but with the same number of pages)
https://www.logos.com/product/431410/reformed-confessions-of-the-16th-and-17th-centuries-in-english-translation-4-volumes-set?queryId=e96f5e9ccbca9c8a61a983b7d8302696 (pre-pub)
https://www.logos.com/product/43137/reformed-confessions-of-the-16th-and-17th-centuries-in-english-translation?queryId=e96f5e9ccbca9c8a61a983b7d8302696 (already in Logos)
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