Abstract: A perceptual cells guide is provided for persons requiring manual assistance in forming messages upon paper sheets or the like. A substantially rigid guide sheet is secured in position adjacent the face of the paper, and this guide sheet is composed of a plurality of parallel, intersecting horizontal and vertical strips of substantially rigid material, forming a plurality of regularly arranged perceptual cells which extend across and up and down the sheet of paper.The cells are preferably rectangular and are aligned with one another vertically and horizontally. Each cell has a pair of spaced apart horizontal guide edges and a pair of spaced apart vertical guide edges, all forming guides for persons of limited sight or who otherwise require assistance in forming orderly messages on the paper.