In the last century, throughout most Middle Eastern countries, it was common to give the distances between cities in walking distances. For example, Khaybar is ten days' journey by foot to Jeddah. See also. Pacing (surveying) Pace (unit) League (unit) Parasang; Biblical mile; References
A mass-market paperback is a small, usually non-illustrated, inexpensive bookbinding format. This includes the UK A-format books of 110 mm Ã 178 mm (4.3 in Ã 7.0 in) and the US pocketbook format books of a similar size.
The numbers for a mass-market paperback book that sells for $8 would include about 75 cents for printing, an 8% royalty to the author (64 cents), and the same 50% ($4) to the retailer. That means the publisher is left with $2.61 for all their costs and profit.