Takenobu Igarashi attained international acclaim as a graphic designer in the mid-1970s through his axonometric alphabets. In 1979, GRAPHIS, a leading Swiss design magazine introduced and featured his work leading to work producing visual identities for major international clients. In the 1980s he started making alphabet sculptures and also advanced into the field of product design. For the Museum of Modern Art, New York, he produced a series of graphic and product design goods. The calendar with three-dimensional numerals, which he designed for eight consecutive years, is one of his masterpieces. In 1994, he ended his 25 years of design activity and moved to Los Angeles to become a sculptor. After working with marble, he discovered terracotta and wood as his material. He returned to Japan in June 2004. In recent years, he has been producing various sculptures and reliefs for public spaces all over Japan and has resumed his design activity from another view point as an artist.