For those interested in gaining a deeper understanding of the US national debt, I commend Tyler Chessman's new book, Understanding the United States Debt (2011) and its companion website. Excel (Microsoft) and PowerPivot (Microsoft) users in particular will want to follow the link below to download a free copy of the PowerPivot-enabled Excel workbook (requires Excel 2010 with PowerPivot installed).
To order a copy of the book, follow the link below.
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