Although throughout the manual you have explained what things are, how
about a newbie section that really goes down to explaining background
information like your OOP section only a bit easier.  What you have is
perfect for people that are familair with OOP and MUD's, but a section
for the true beginners to programming would help to ease them into it.
Not just an explanation of how it works but things like "You don't have
to understand what you are reading the first time you read this (most
don't) just read on and eventually it will all fall into place."  I know
this stuff is very simple to you and for those like me it's fun reading
but for the true newbie it would be a real struggle to grasp all these
new concepts.