"I advised you to dispose of your books, and advise it still. Be sure to do it, it will give you peace of mind.
But at the same time be careful not to become narrow-minded, or afraid of reading what is well written, quite the contrary, such writings are a source of comfort in life."
If you don't have PDF editing software, you can edit the blank Avery ones online ( if by edit you mean fill in the BCIDs). PDFescape works okay for me. Takes a bit of fiddling initially to set the numbers in the right space and the size you want them; but once you get the hang of it it's easy-peasy. Works pretty much like inserting a text field in Windows Paint. http://www.pdfescape.com/windows/