Cover: A rigid, cycloaliphatic polymer, poly(6,7‐bicyclo[3.2.0]heptylene), was synthesised via the olefin addition polymerisation of the cyclobutene derivative, bicyclo[3.2.0]hept‐6‐ene. Early and late transition metal catalysts were used for these polymerisations. The cover graphic also shows the preferred conformation of the monomer. Further details can be found in the article by K. Curran,* W. Risse,* L. Boggioni, I. Tritto on page 707 Larry Dalton is acknowledged for the design of the cover picture.