Lean Accounting

Here is a link to a really good book on lean accounting:
http://www.amazon.com/Real-Numbers-Management-Accounting-Organization/dp/0972809902 

One of the major take-aways for me is that in a low inventory business, you are not required by the Generally Accepted Accounting Practices (GAAP) to add labor cost to inventory valuation. It is this practice that is generally regarded by lean practitioners as a bad thing, because it encourages you to build inventory you can't sell as it makes the business appear profitable (at least in the short run). The book is written by two CFO's, so the ideas are quite credible.