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The Inside Cover picture shows an amine-tethered porous polymer network and its application for carbon capture from flue gas. This polymer based on diethylenetriamine, PPN-125-DETA, exhibits a working capacity comparable to industrial benchmark monoethanolamine (MEA) solutions. More importantly, the energy cost for the regeneration of PPN-125-DETA is only one third of MEA solutions; therefore, the energy penalty could be reduced from 30 % to 10 % if PPN-125-DETA were to replace MEA solutions. Given its truly cost-effective and industrially scalable synthetic procedure as well as its superior cyclability, PPN-125-DETA is a very promising new material for carbon-capture-related clean energy applications. More details can be found in the Communication by Zhou et al. on page ▪▪ (DOI: 10.1002/cssc.201402622).