This is the second volume edited by leading expert Prof. Yoshiki Chujo on the evolving topic of conjugated polymer synthesis. Since publication of the first volume in 2010, new methodologies have been developed and the materials from such conjugated polymers are now crucially important in varied electrical, optical, and magnetic applications. This new volume summarizes major developments in the synthesis of new conjugated polymers, novel methodologies for the preparation of conjugated polymers, and inorganic-elements containing mainchain-type conjugated polymers. Topics covered include:- Living conjugated polymers- Cyclophane conjugated polymers- P- and As-containing conjugated polymers- Low bandgap conjugated polymers - 3-D and helical conjugated polymers- Conjugated polymers for organic solar cells and organic electronic devices Keywords: Conjugated polymers, transition metal catalysis, living polymerization, polycondensation, optical materials, electrical materials, magnetic materials, biomedical materials