Printed educational publications, namely, manuals, workbooks, study guides, brochures in the fields of designing and planning traffic control devices, traffic control layouts, traffic signs, pavement markings and channelizing features, traffic signals, lighting, and sign structure; Printed educational publications, namely, manuals, workbooks, study guides, brochures in the fields of civil engineering; Printed educational publications, namely, manuals, workbooks, study guides, brochures in the...