This final issue of GT Volume 14 is devoted to a set of five papers by Cliff Taubes.

Any given oriented, compact 3-dimensional manifold has a number of associated Floer homologies. One of these is the Seiberg-Witten Floer homology - also known as Monopole Floer homology. This Floer homology is computed using an algebraic count of certain pairs of connection and spinor on the 3-manifold. A second and very different looking Floer homology is Michael Hutching's embedded contact homology. The definition of the latter requires the introduction of a contact structure on the three manifold. This version is computed using an algebraic count of the closed integral curves of the associated Reeb vector field. The papers in this issue supply an isomorphism between embedded contact homology and the Seiberg-Witten Floer cohomology.