The front cover picture illustrates the ring-opening cyclization of spiro[2.5]octane-4,8-dione and spiro[2.6]nonane-4,9-dione with phosphorus ylide, which acts as nucleophile to open the cyclopropane and is followed by an intramolecular C−C bond formation, affording [5.6]- and [5.7]-fused carbocyclic products, respectively. This protocol provides an efficient synthetic route for indanes and azulenes. Details can be found in the Research Article by Hisanori Nambu, Takayuki Yakura, and co-workers (Y. Onuki, K. Yamazaki. Y. Masuda, T. Yakura, H. Nambu, Adv. Synth. Catal. 2023, 365, xxxx-xxxx; DOI:: 10.1002/adsc.202300021)