The twelfth annual Workshop on Combinatorial and Additive Number Theory (CANT 2014) will be take place at the CUNY Graduate Center in New York from Tuesday, May 27, to Friday, May 30.

Harald Helfgott (Ecole Normal Superieure, Paris) will deliver a series of four lectures on his recent spectacular work on the ternary Goldbach problem. The first talk in this series will be at the Courant Institute of NYU on Tuesday, May 27, at 3:30 p.m. The next three talks will be at the Grad Center.