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					Originally Posted by Jane12  Can you avoid PDFs by avoiding books labeled "PagePerfect Nookbooks" or do PDFs sometimes appear without warning? Thx. | 
	
 I haven't had one turn up that wasn't labeled PagePerfect.  You can check on a book's page by clicking the question mark next to "Available on NOOK devices and apps".  If it lists NOOK eReaders and NOOK for PC/Mac, then it should be an epub.  Of course, the best way to avoid them is to avoid B&N. :P