Of historical interest, here's an early USDA pamphlet on pearl millet:
"Pearl millet," by Carleton R. Ball, USDA Farmers' Bulletin No. 168, Washington, Government Printing Office, 1903. (16 pages)
The focus is on pearl millet as a fodder crop.
Don Osborn, PhD
(East Lansing, MI, US)
North American Millets Alliance