The article discusses the development of a method to produce high-quality, defect-free graphene in large quantities through liquid exfoliation. This method is inspired by previous studies on the solvent-dispersion of carbon nanotubes, which showed that nanotubes can be effectively dispersed in solvents with surface energies matching those of the nanotubes. The authors applied this approach to graphite, finding that ultrasonication in suitable solvents can disperse graphite powder into nanosheets, which are stabilized against aggregation. The optimal solvent has a surface energy of around 68 mJ/m², and the exfoliated nanosheets are free of defects and oxides. The process can be optimized to increase the dispersed concentration and separate nanosheets by size. Surfactants can also be used to stabilize graphene in water, where the zeta potential controls the dispersed concentration. Liquid exfoliated graphene has potential applications in various fields, including optical limiting, transparent conductors, and mechanical reinforcement of composites. The authors have extended this method to other layered compounds like boron nitride and molybdenum disulfide, which have potential in thermoelectrics and battery electrodes. The technique has the potential to be scaled up for industrial use, and the authors predict an explosion in the applications of liquid exfoliated two-dimensional materials in the coming decade.The article discusses the development of a method to produce high-quality, defect-free graphene in large quantities through liquid exfoliation. This method is inspired by previous studies on the solvent-dispersion of carbon nanotubes, which showed that nanotubes can be effectively dispersed in solvents with surface energies matching those of the nanotubes. The authors applied this approach to graphite, finding that ultrasonication in suitable solvents can disperse graphite powder into nanosheets, which are stabilized against aggregation. The optimal solvent has a surface energy of around 68 mJ/m², and the exfoliated nanosheets are free of defects and oxides. The process can be optimized to increase the dispersed concentration and separate nanosheets by size. Surfactants can also be used to stabilize graphene in water, where the zeta potential controls the dispersed concentration. Liquid exfoliated graphene has potential applications in various fields, including optical limiting, transparent conductors, and mechanical reinforcement of composites. The authors have extended this method to other layered compounds like boron nitride and molybdenum disulfide, which have potential in thermoelectrics and battery electrodes. The technique has the potential to be scaled up for industrial use, and the authors predict an explosion in the applications of liquid exfoliated two-dimensional materials in the coming decade.