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.
Paperback editions of books are issued when a publisher decides to release a book in a low-cost format.Cheap paper, glued bindings, and the lack of a hard cover contribute to the inherent low cost of paperbacks.owever, the first mass-market, pocket-sized, paperback book printed in the US was an edition of Pearl Buck 's The Good Earth, produced by Pocket Books as a proof-of-concept in late 1938, and sold in New York City. It has since become very collectible.