1. Letters to the editor

   Departments 12 January 2009 Pages: 3 - 3

2. My years as a full-time industrial mathematician

   • Samuel S. Holland

   Articles 12 January 2009 Pages: 4 - 8

3. Minesweeper is NP-complete

   • Richard Kaye

   Articles 12 January 2009 Pages: 9 - 15

4. A cultural gap revisited

   Departments 12 January 2009 Pages: 16 - 17

5. Why circles?

   Departments 12 January 2009 Pages: 18 - 18

6. A century-long loop

   • Florin Diacu

   Articles 12 January 2009 Pages: 19 - 25

7. Reasearch announcement

   Departments 12 January 2009 Pages: 26 - 27

8. The unreasonable effectiveness of mathematics in molecular biology

   • Arthur M. Lesk

   Articles 12 January 2009 Pages: 28 - 37

9. Ambigrams

   • Burkard Polster

   Articles 12 January 2009 Pages: 37 - 37

10. Fra’ Giovanni’s intarsias in Verona

    • Hartwig Thomas
    • Kim Williams

    Departments 12 January 2009 Pages: 38 - 40

11. A geometrically decorated renaissance box

    • B. Artmann

    Departments 12 January 2009 Pages: 41 - 42

12. Complete monotonicity and diesel fuel spray

    • Arcadii Z. Grinshpan
    • Mourad E. H. Ismail
    • David L. Milligan

    Articles 12 January 2009 Pages: 43 - 53

13. The surfaces capable of division into infinitesimal squares by their curves of curvature:

    • Udo Hertrich-Jeromin

    Articles 12 January 2009 Pages: 54 - 61

14. The Kovalevskaia fund

    • Ann Hibner Koblitz
    • Neal Koblitz

    Departments 12 January 2009 Pages: 62 - 65

15. Doing analysis by tossing a coin

    • Daniel W. Stroock

    Articles 12 January 2009 Pages: 66 - 72

16. Vita: Friedrich Wilhelm Wiener

    • Harold P. Boas
    • Dmitry Khavinson

    Departments 12 January 2009 Pages: 73 - 75

17. Reviews

    • Peter Borwein
    • Richard Conn Henry

    Departments 12 January 2009 Pages: 76 - 79

18. Mathematics and art II: Albrecht Dürer

    • Robin Wilson
    • Florence Fasanelli

    Departments 12 January 2009 Pages: 80 - 80