Neck Book Light

FIG. 1 is a perspective view of a neck book light showing my new design; FIG. 2 is another perspective view thereof; FIG. 3 is a front view thereof; FIG. 4 is a back view thereof; FIG. 5 is a left side view thereof; FIG. 6 is a right side view thereof; FIG. 7 is a top plan view thereof; and, FIG. 8 is a bottom plan view thereof. The broken lines immediately adjacent the shaded surfaces depict the bounds of the claimed design, whereas all remaining, broken lines depict portions of the neck book light, all of which form no part of the claimed design.