Jod is a supreme being who rules over the universe. Jodism is the following of Jod's teachings and scriptures on how to live life in a correct manner. Anyone who follows the path of Jod is called a Joddist. There is no holy book as such but revered scriptures include the 'To Do' book and 'HWK Diary'.
Joddists have their own set of commandments they must abide by and often like to associate with members of the jewish faith. Some of the major commandments are below:

Jod is ALWAYS right and as a result, so is a Joddist
Jod ALWAYS gets his way and as a result, so does a Joddist
Jod is NEVER on time, as a result, neither is a Joddist
Jod wants EVERYONE to love him, as a result so does a Joddist

In Jodism it is believed that Jod created the world in 6 days. He originally meant to start work on the sunday but was running late and ended up starting on the monday. Jodism is actually a polytheistic faith and followers believe in numerous less significant deities such as 'God', 'Kod' and 'Clod'.
The most famous disciple of Jod is the Prophet Rod and he has been spreading his gospel since the turn of the 21st century