Rumors in the Japanese Society of Rheology suggest Doi is working on a second edition focusing on Active Matter —a field he pioneered (swimming droplets, bacterial turbulence). If a second edition drops, expect the 2013 PDF to circulate even more widely as a "legacy" text.
While the textbook covers broad topics, Doi is world-renowned for his work on (developed with Sir Sam Edwards). This theory describes how long polymer chains move like snakes through a "tube" formed by the entanglements of surrounding chains, explaining why polymer melts are so viscous. Soft Matter Physics - Google Books soft matter physics masao doi pdf