I claim the ornamental design for a set of hooks, as shown and described.
FIG. 1 is a perspective view of a set of hooks of the present invention (with a mounting apparatus that is not part of the invention shown in phantom);
FIG. 2 is a right side view the set of hooks of FIG. 1, the left side view being a mirror image of the right side view shown;
FIG. 3 is a front view of the set of hooks of FIG. 1;
FIG. 4 is a top view of the set of hooks of FIG. 1;
FIG. 5 is a bottom view of the set of hooks of FIG. 1; and,
FIG. 6 is a rear view of the set of hooks of FIG. 1.