Resources for Hunters
The most common reaction to seeing an Armchair Treasure Hunt for the first time is to exclaim "It looks impossible! Where on earth do I start!?"
This is quite understandable, and indeed the Logica ATH is not designed to be easy. However, if you are the sort of person who enjoys the mental challenge of a good puzzle, then a few pointers will hopefully help you to make some sense of it all and get you up and running. Pablo's Introduction to Hunting provides just such a summary of how to approach an Armchair Treasure Hunt. There are also some more specific answers provided to this set of practical and Frequently Asked Questions.
Dastardly codes are a common feature of Armchair Treasure Hunts, but if you are not someone who can decrypt a Vigenère Cipher in your head, then Pablo once again can come to your rescue. He developed a set of spreadsheets that can help in decrypting some of the more common ciphers, and these are available for anyone to download.