This paper aims to demonstrate the applicability of the L 2 -integral transform to Partial Differential Equations (PDEs). Of special interest is section ( 6), which contains an application of the L 2 -transform to a PDE of exponential squared order, but not of exponential order. Sections ( 1) and ( 2) aim to introduce the history and some elementary properties of the L 2 transform, (3) and ( 4) include some of the transform's simple applications, and section (5) introduces the L 2 convolution.