I got a lot of info from the ASA book "Sailing Fundamentals"
However, being more of a "kenetic learner", I must say that the books get somewhat repetitive - to truly understand sailing you must sail. The books provide a basic idea of the physics - but once you have those, you need to have the FEAR put in you!
"The best government is that which communicates ease, comfort, security - or in one word - HAPPINESS, to the greatest number of people and to the greatest degree."
John Adams, Founder - USA.