Warren Buffett talks about Moats.

Net Present Value ( of cash flows ) Calculation

Johnson & Johnson Intrinsic Value Estimation

Valuations, book with 30 case examples, by Bud Labitan

The Four Filters Invention of Buffett and Munger

Price To Value, a look at Intelligent Speculation

Charlie Munger talks about their Investing Filters

Buffett and Munger on Value Investing
Decision Making