Seems pretty useful for me. The first couple books were how to write in code. The last book was an example or writing in code. The first code was just a basic l

Seems pretty useful for me. The first couple books were how to write in code. The last book was an example or writing in code. The first code was just a basic letter test. When writing LCD drivers the first thing I do is output color bars, very useful for making sure everything is working. The second code was a demonstration of how you could have a messenger carry something that they don't know about. It said the bearer is a thief. This is pretty much what modern internet commerce is based on. Communicating in code (SSL) with messengers that internet routers in between can't read (credit card details, etc.). The third code was Christian prayer, which proved the demonology plain text wasn't something he really supported. The demonology plain text was what made it popular and passed on, however, so even that was useful in that if the book was just all encoded numbers, no one would have printed it. So the box wasn't garbage and the contents weren't garbage. What makes you think they were?