
- The Most Important Thing Illuminated: Uncommon Sense for the Thoughtful Investor (Columbia Business School Publishing)
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Amazon
From $18.50 (New)

From $18.50 (New)

| Latest | $18.50 2 days ago |
| Highest | $23.06 Feb 17, '15 |
| Lowest | $17.19 Dec 23, '15 |
| Average | $18.50 (30d avg) $18.50 (90d avg) $18.80 (180d avg) $20.40 (365d avg) $20.52 (Lifetime average) |
| Added | Sep 18, 2013 |
| Latest | $17.24 2 days ago |
| Highest | $18.61 May 22, '15 |
| Lowest | $11.95 May 1, '15 |
| Average | $17.09 (30d avg) $16.99 (90d avg) $16.88 (180d avg) $17.15 (365d avg) $17.26 (Lifetime average) |
| Added | Sep 18, 2013 |
| Latest | $14.45 2 days ago |
| Highest | $18.24 Oct 29, '15 |
| Lowest | $9.03 May 7, '15 |
| Average | $14.95 (30d avg) $14.67 (90d avg) $14.80 (180d avg) $15.67 (365d avg) $15.31 (Lifetime average) |
| Added | Sep 18, 2013 |
30 day average: 13,677
90 day average: 11,766