Selecting the "best" sparse iterative solver and preconditioner is often a difficult decision. Very rarely can one simply know which combination will converge quickest to find a solution within the given constraints. Often the best answer requires knowledge pertaining to the structure of the matrix and the properties it exhibits. To help aid in the selection of a solver and preconditioner, we have constructed some flow charts to help gauge which solver and preconditioner might work best. Again, since there is no correct answer for a given system, we encourage users to experiment with different solvers, preconditioners, and options. These charts are only designed to give suggestions, and not absolute answers.