A simple projection method for direct visualization of the transverse spatial structure of freely propagating light beams is proposed and experimentally demonstrated.The optical arrangement consists of a negative lens positioned downstream of the investigated beam cross section and a remote observation screen. Within the paraxial approximation, the lens converts the transverse field distribution into an angular distribution that is projected onto the screen with a magnification determined by the ratio M = L|f|, where L is the distance from the lens to the screen and f is the focal length of the negative lens. The method enables non-invasive observation of beam cross sections while preserving unrestricted access to the investigated region. Longitudinal scanning isachieved simply by translating the lens along the propagation axis, allowing the spatial evolution of optical fields to be monitored without modifying the experimental arrangement.The technique has been applied to visualization of the fine spatial structure of semiconductor laser beams and to the investigation of diffraction fields generated by a knife edge. Experiments performed with projection magnifications of approximately M ≈ 300 reveal structural details that remain inaccessible under conventional observation conditions.Owing to its simplicity, low cost, and high visual sensitivity, the proposed methodrepresents a useful experimental tool for exploratory studies of wave-optical phenomena, laser beam diagnostics, and educational laboratory demonstrations