The ornamental design for a book and tabletstand, as shown and described.
FIG. 1 is a perspective view as seen from the front right side of a book and tablet stand showing my new design with an arm positioned for holding a tablet;
FIG. 2 is a front view thereof;
FIG. 3 is a back view thereof;
FIG. 4 is a top view thereof;
FIG. 5 is a bottom view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a left side view thereof;
FIG. 8 is a perspective view as seen from the front right side of the book and tablet stand of FIG. 1 showing the arm positioned for holding a book; and,