Before you ask us a question, check over the list of frequently asked questions to the left. Chances are someone's already asked it! If you can't find your answers in there, simply email us here

Our FAQ's generally answer most people's enquiries and are grouped into the following categories:

• Interpreting a Reading
  
  
• Methodology
  
  
• Calculations
  
  
• History & Origins
  
  
• Other