To manage our ever growing home library, I use the program Book Collector. All you do is type in the ISBN number and it will look online to grab all the info about the book including a picture of the cover. And I even found this cheap cuecat scanner on ebay and then you don’t even have to type the isbn–just scan. Very easy!
I also bought this stamp from Expressionery to mark all our books:

Wow! That’s really organized! Good idea! Thanks for sharing!