The publisher calls this a "Pocket Edition" but it would require a large pocket (exterior suitcoat or overcoat pocket). …
Pigskin, Black, 7-Point Type, 5" x 8.25" x 1"
#7382-21, $59.95
Calfskin, Black, Interleaved, 8.5-Point Type, 5.8" x 9" x 2.5"
#4990-50, $129.95