Sheep and sheep-farming

Sheep are still an important part of Australia's economy, as they are in many of the countries I have visted, in Iceland, New Zealand, Scotland, and Mongolia.

So I'd like to read a comparative history of sheep worldwide, covering their economic and social significance. There's no shortage of animal husbandry and veterinary science books, but no general history seems to exist, only regional studies.

My reading on the subject so far consists of:

• A Plague of Sheep: Environmental Consequences of the Conquest of Mexico (review)
• Spain's Golden Fleece: Wool Production and the Wool Trade from the Middle Ages to the Nineteenth Century (review)
• Sheep-Rearing and the Wool Trade in Italy During the Roman Period (review)

• The Highland Clearances: People, Landlords and Rural Turmoil (review)
• Independent People (my review of Halldor Laxness' novel)

• The Genetics of Sheep
• People, Sheep and Nature Conservation: The Tasmanian Experience
• Tutira: The Story of a New Zealand Sheep Station
• An Illustrated World History of The Sheep and Wool Industry