Michael Bierut is a partner with Pentagram Design in New York. His clients at Pentagram have included The Council of Fashion Designers of America, The New York Times , The Museum of Arts and Design, United Airlines, The Brooklyn Academy of Music, Harley-Davidson, Princeton University, the Morgan Library and Museum, and the New York Jets.

Bierut has won hundreds of design awards, and his work is represented in the permanent collections of museums around the world. He has served as president of the New York Chapter of the American Institute of Graphic Arts (AIGA) and as that organization's national president. He is also a board member of the Architectural League of New York and New Yorkers for Parks. For the last 10 years, he has been a senior critic in the graphic design program at the Yale School of Art, and a senior faculty fellow at the Yale School of Management.

In 2002, Bierut co-founded Design Observer, a blog about design and cultural criticism; today, the site is the largest design publication in the world. In 2008, he was named winner in the Design Mind category of the Cooper-Hewitt National Design Awards.

Bierut studied graphic design at the University of Cincinnati's College of Design, Architecture, Art and Planning. Prior to joining Pentagram's New York office in 1990, he was vice president of graphic design at Vignelli Associates.