April is National Poetry Month and in Princeton this means a new issue of U.S.1 Worksheets, the (now) annual poetry journal of U.S.1 Poets’ Cooperative. Last Sunday, April 3, the community room of the Princeton Public Library was packed to capacity, as poets gathered to celebrate the arrival of Volume 56 of U.S.1 Worksheets, featuring the work of 98 local and regional poets.