"The Book of the Hamburgs" is a late 19th-century poultry guide by L. Frank Baum focused on the Hamburg chicken breed. It covers their historical origins, physical traits, and egg-laying strengths in detail. Baum highlights their lineage from England and Holland, noting their plumage and comb types. Aimed at both beginners and breeders, the book offers practical tips on breeding, chick care, and poultry exhibitions. With a balance of passion and utility, it remains a valuable resource for poultry enthusiasts.