Classical novae occur in close binary systems consisting of a white dwarf and a star with a hydrogen rich envelope. The white dwarf accretes hydrogen which ignites in a thermonuclear runaway. Nucleosynthesis proceeds close to the valley of stability through a series of (p,g) and (p,a) reactions and b+ decays. Each of these events ejects 10^-7 -10^-3 M_sun of material. Some of this ejected material condenses into grains, and these grains can be identified in primitive meteorites by comparing their measured isotopic ratios to those predicted by various stellar models.The 30P(p,g)31S reaction rate potentially acts as a bottleneck, controlling nucleosynthetic flow in the 30
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