Noncommutative geometry and physics 3 : Shonan Village Center Japan 18 22 February 2008 ; Kyoto University Japan 1 April 2010 31 March 2011 ; [proceedings of the Workshop on Noncommutative Geometry and Physics 2008: K theory and D branes held at Shonan International Village Japan during the week of February 18 22 2008 and of the RIMS thematic year on Perspectives in Deformation Quantization and Noncommutative Geometry held through the year of 2010] Noncommutative differential geometry is a novel approach to geometry aimed in part at applications in physics. The strategy is to formulate usual differential geometry in a somewhat unusual manner using in particular operator algebras and related concepts so as to be able to plug in noncommuntativity in a natural way. Algebraic tools such as K theory and cyclic cohomology and homology play an important role in this field