What are the different types of isoquant production?

Isoquant production can be classified into three main types: linear, convex, and L-shaped isoquants. Linear isoquants indicate perfect substitutability between inputs, where one input can be substituted for another at a constant rate. Convex isoquants represent diminishing marginal returns, showing that as one input increases, the additional output gained from substituting another input decreases. L-shaped isoquants reflect fixed proportions of inputs, indicating that the inputs must be used in a specific ratio to produce a certain level of output.