1. An Effective Tool Might Lead Us on to an Ineffective Proof

   • Artin Sharifi

   Letter 29 April 2016 Pages: 1 - 2

2. What Could “Effective” Mean for Proofs?

   • Michael Neubrand

   Letter 29 April 2016 Pages: 3 - 3

3. Catalan Numbers

   • Federico Ardila

   Note 29 April 2016 Pages: 4 - 5

4. Writing an Open Text

   • Jim Hefferon
   • Albert Schueller

   Viewpoint 08 March 2016 Pages: 6 - 9

5. Dogma: S-shaped

   • Pablo Castañeda

   Article 18 April 2016 Pages: 10 - 13

6. The Galactic Math Repository

   • Colin Adams

   Mathematically Bent 29 April 2016 Pages: 14 - 16

7. Determining the Use of Mathematical Geometry in the Ancient Greek Method of Design

   • Drew M. Ross

   Article 19 April 2016 Pages: 17 - 28

8. Centers of Mass of Poncelet Polygons, 200 Years After

   • Richard Schwartz
   • Sergei Tabachnikov

   Mathematical Gems and Curiosities 19 April 2016 Pages: 29 - 34

9. Bridges: A World Community for Mathematical Art

   • Kristóf Fenyvesi

   Mathematical Communities 29 April 2016 Pages: 35 - 45

10. A Snapshot of Debates on Relativistic Cosmology, 1917–1924 (Part I)

    • David E. Rowe

    Years Ago 29 April 2016 Pages: 46 - 58

11. Maine v. Mathematics: A Tale of Reapportionment, Calculation and Indignation

    • Michael J. Caulfield

    Article 08 March 2016 Pages: 59 - 64

12. A Tasting Menu

    • Jim Henle

    Cucina Matematica 29 April 2016 Pages: 65 - 68

13. Möbius Strips Before Möbius: Topological Hints in Ancient Representations

    • Julyan H. E. Cartwright
    • Diego L. González

    Article 10 May 2016 Pages: 69 - 76

14. The Diabolic Connection Between Paris and Brussels

    • Dirk Huylebrouck

    The Mathematical Tourist 03 May 2016 Pages: 77 - 79

15. Imagined Civilizations: China, the West, and Their First Encounter by Roger Hart

    • Andrea Bréard

    Reviews 29 April 2016 Pages: 80 - 82

16. The Emperor’s New Mathematics: Western Learning and Imperial Authority During the Kangxi Reign (1662–1722) by Catherine Jami

    • Albrecht Heeffer

    Review 30 December 2015 Pages: 83 - 84

17. Enlightening Symbols: A Short History of Mathematical Notation by Joseph Mazur

    • Rafe Jones

    Reviews 30 December 2015 Pages: 85 - 86

18. Do I Count? Stories from Mathematicsby Günter M. Ziegler (translated from German by Thomas Von Foerster)

    • Ulrich Daepp

    Reviews 30 December 2015 Pages: 87 - 88

19. Erratum to: Math at the Met

    • Joseph Dauben
    • Marjorie Senechal

    Erratum 03 February 2016 Pages: 89 - 89

20. China and Japan

    • Robin Wilson

    Stamp Corner 19 April 2016 Pages: 90 - 90