I see the emergence of digital firm (transfer of data
electronically).I'm a shipping clerk of a small firm that prints,
binds and ships popular books for a mid-level publisher. The
production facilities are Albany, NY(12250). The customer warehouse
located Rye, NY(10580),Irving,TX(75015),Charlotte, NC(28201),Sioux
Falls, SO.Dakota (57117) & Tustin, CA(92680). Books weight
a. 45lbs, 9" height,17" width, 13" depth. 
b. 16lbs, 10" height,12" width, 6" depth. 
My question is which shipping service would you used Federal Express,
United Parcel Service and the United States Postal Service? Why?

Consider not only costs but issues of delivery speed, pickup
schedules, drop-off location and tracking.