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			 Member 
			
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				Join Date: Apr 2020 
				
				
				
				Device: Kobo Aura One 
				
				
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				What applications do you guys use for finding and removing duplicate books?
			 
			
			
			This is for Linux or Windows OS.
		 
		
	
		
		
		
		
		
		
		
		
		
		
	
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		#2 | 
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			 Bibliophagist 
			
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				Join Date: Jul 2010 
				Location: Vancouver 
				
				
				Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos 
				
				
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		#3 | 
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			 Grand Sorcerer 
			
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				Location: Estonia 
				
				
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		#4 | 
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			 350 Hoarder 
			
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				Join Date: Dec 2010 
				Location: Midwest USA 
				
				
				Device: Sony PRS-350, Kobo Glo & Glo HD, PW2 
				
				
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			I also keep my entire library in Calibre, if you add a book that you already have, a warning will pop up that it's either replacing or being added to the book you already have, or a 2nd entry, depending on your settings.   
		
	
		
		
		
		
		
		
		
		
		
		
	
	When I got my first ereader I immediately started using Calibre, knowing I'd have to have some way to quickly see if I had a particular book or not or I'd end up with many many duplicate purchases.  | 
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		#5 | 
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			 Grand Sorcerer 
			
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				Join Date: Jan 2007 
				Location: Peru 
				
				
				Device: KINDLE: Oasis 3, Scribe (1st), Matcha; KOBO: Libra 2, Libra Colour 
				
				
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		#6 | 
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			 Resident Curmudgeon 
			
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				Location: Roslindale, Massachusetts 
				
				
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