Having a catalog full of errors can be a disaster, which is the word people were thinking of when they added this one. There are more than 200,000 of these in Google, and a substantial 33 in Worldcat. As we have mentioned before, the location of the mistake can be important. A typo in a notes field is mostly annoying, but when the first word of the title is a typo, that impacts access to the title. This is found in the D section of the Typographical errors in library databases page, which is the Low Probability area.