FIG. 1 is a top plan view of lap desk showing my new design.

FIG. 2 is a front elevational view thereof.

FIG. 3 is a bottom plan view thereof.

FIG. 4 is a rear elevational view thereof.

FIG. 5 is a left side elevational view thereof.

FIG. 6 is a right side elevational view thereof, and;

FIG. 7 is a perspective view thereof.

The broken line showing in the figures is for illustrative purposes only and forms no part of the claimed design.