Question: what is the difference between isbn 10 and isbn 13?
Answer: The ISBN is 13 digits long if assigned on or after 1 January 2007, and 10 digits long if assigned before 2007. ... A 10-digit ISBN cannot be converted to 13-digits merely by placing three digits in front of the 10-digit number. About the ISBN Standard. “ISBN” stands for “International Standard Book Number”.