11. The method of laying out selected pressure sensitive adhesive backed Helvetica font letters, of a predetermined nominal height, with their adhesive backed sides down and their facing sides up, for pickup and transfer as an assembled unit, by a transfer sheet that has a pressure sensitive adhesive surface on one side of same, to a selected substrate surface, which method comprises: taking a release agent coated grid which comprises a working face including a head horizontal base line indicia and a foot base horizontal line indicia of which said foot base line indicia comprises a top base line, a middle base line and a bottom base line extending in parallelism across said one side of said grid sheet with said middle base line centered between said top and bottom base lines, with said head base line indicia comprising a base line spaced above said middle base line of said foot base line indicia a dimension approximating three-fourths of said font lettering nominal height, and said foot base line indicia top and bottom base lines being spaced from the middle base line thereof a distance approximating one-half the difference between the height of the font capital letters that have horizontally rectilinear upper and lower ends and the height of the font capital letters that have round upper and lower ends, and with said grid further comprising closely spaced vertical lines across said face and said grid having a length to receive for layout purposes a predetermined number of the font letters to form one of said units for word forming purposes, and forming the units by laying the lower ends of the font capital letters having horizontally rectilinear lower ends aligned with the top base line of said foot base line indicia adhesive backed side down, laying out the font lower case rounded letters with their lower ends aligned with the middle base line of said foot base line indicia adhesive backed side down, laying out the font capital letters that have convexly rounded lower ends in tangency with the lower base line of said foot base line indicia adhesive backed side down, and laying out the font elongated lower case letters with horizontally rectilinear upper portions thereof aligned with said base line of said head base line indicia adhesive backed side down, with predetermined vertical line separation between adjacent letters.
12. The method set forth in claim 11 including: adhering the adhesive of the letters forming each unit to the grid with light release factor, burnishing from the other side of the transfer sheet, the transfer sheet adhesive surface against the facing sides letters of the unit to be transferred to adhere said facing sides of such letters to the transfer sheet adhesive surface with a release factor that is at least several times that of said light release factor, lifting the transfer sheet from the grid by pulling one end of same from the grid to separate the unit letters one by one from the grid while retaining them adhered as a unit to the transfer sheet adhesive surface, transferring the transfer sheet to the substrate surface, adhering the adhesive of the unit letters to the substrate surface with a release factor that resists pulling of the individual letters away from the substrate surface by burnishing the letters of the unit against the substrate surface from said other side of the transfer sheet, and pulling the transfer sheet from one end of same over on itself longitudinally of the unit, and at an angle of approximately one hundred eighty degrees with respect to the substrate surface, to separate the transfer sheet consecutively from the letters of such unit.