One of the best of the short-Wolfe collections, each of these three highlights different parts of Wolfe's personality, background and temperament, which is what we want in a Nero Wolfe story. He's dragged out of his house because his gardener has to take a leave of absence - he's pulled into murders he has no interest in, and the cops are worse than unhelpful.  Even some of the chintzy private eye tricks that seem beneath Wolfe are fully and fairly explained from his personality and temperament.  If you want an intro to Wolfe, you could hardly do better.