Many of the questions newcomers have may be found within one of the links below. This list is by no means exhaustive and will be updated as necessary.

• Check out the Wikipedia Page for a brief overview.

• Tom Voigt’s comprehensive Zodiac Killer site can be found here.

• Richard Grinell lays out the information in a very easy-to-read format and has a lot of pictures, etc. to peruse through at www.zodiacciphers.com.

• The FBI case file on the Zodiac can be found at the FBI Vault website by searching for “Zodiac Killer” here.