16 Instruction sheets in the field of leadership; Magazines in the field of leadership; Posters; Printed instructional, educational, and teaching materials in the field of leadership; Printed materials, namely, written articles in the field of leadership; Printed matter, namely, paper signs, books, manuals, curricula, newsletters, informational cards and brochures in the field of leadership; Printed pamphlets, brochures, manuals, books, booklets, leaflets, informational flyers, informational sheets and newsletters, adhesive backed stickers, and kits comprised solely of one or more of the foregoing materials in the field of leadership