A high degree of interest has been maintained in the fields covered by two of the sessions: “Ionic Polymerization” and “Block and Graft Polymerizations” which between them attracted 143 papers in total: cationic, 25; anionic, 36; coordination, 30; and block and graft, 52. The reviewer's impression is that the research in these areas is now more diversified than ever before, in particular the topics covered by the second session. The contributions focussed not only on the development of novel polymerization reactions, but also on their application to the synthesis of a wide variety of well-defined polymers. The following sections touch on some of the highlights; references are given in parentheses, where EA and ES refer to the pages of the Polymer Preprints, Japan, English Edition (Vol. 37) for the Annual Meeting (No. 1) and the Symposium on Macromolecules NO.2), respectively.