Look at Creative Publishing International's selection. A division of Quayside Publishing Group, they put out books in a variety of categories, including cooking, do-it-yourself home repair and birdwatching guides. The broadest selection is found within the realm of crafts, with books explaining how to do origami, paint, quilt, make jewelry and more.
Check out the For Dummies series. This is a series of books by many different authors on almost every subject, produced by Wiley Publishing. Held together by a consistent style and physical format, the Dummies books cover topics as diverse as parenting, relationships, business and automotive. The computing and Internet selection is particularly comprehensive, with dozens of books explaining the use of specific software or programming languages.
Browse the titles published by Paladin Press. A niche how-to publisher, Paladin prints books for military and weapons enthusiasts, focusing on martial arts, self-defense and target shooting. Many titles feature instructional material on obscure martial arts such as the English longsword, or cover related craftsmanship skills such as knife-making and locksmithing.
Look at the books put out by Storey Publishing. Another more narrowly-focused publisher, Storey prints books on farm and home-related topics including raising chickens, baking cakes and landscape design. Some domestic craft titles on topics such as knitting and sewing, together with a broad range of gardening how-to books round out the selection.