A wave of near-term innovation in nuclear energy promises to revolutionise nuclear safety and economics and open up new applications in hard-to-abate sectors. Small modular reactor (SMR) designs under development offer different value propositions, with a variety of sizes and temperatures intended for different applications. This brochure presents a brief overview of how SMRs are reinventing nuclear energy sector and how SMRs could contribute to the world's decarbonisation efforts.