This one-night-only concert took place at Lincoln Center during the height of the folk-music craze, months before Simon & Garfunkel had recorded “Mrs. Robinson” for the film The Graduate. Inspired by his own Baby Fat typeface, Milton Glaser turned the silhouettes of the singers into an extension of the three-dimensional letterforms, making the text as important as the figurative elements. This technique also avoided the visual cliché of featuring portraits of the performers in the advertisement.