[The Owls of North America, a] magnificent reference book, surely the most comprehensive and handsome to date, covers all the owls known to inhabit the continent north of Mexico…. Orderly, straightforward, and detailed, the text conveys all the essential data known to ornithology in respect to these economically valuable and still mysterious birds.

Peter Gardner, "Naturalist's Bookshelf: 'The Owls of North America'," in Audubon (copyright © 1974 by the National Audubon Society), Vol. 76, No. 6, November, 1974, p. 105.

Eckert, a respected writer on American frontier history, makes a distinctly unpropitious maiden voyage into sf [with The HAB Theory]: numb characterizations, elephantine dialogue (girl talking man into leaving his wife: "For example, part of your disinclination to make a decision in our favor is your fear of a postseparation negative reaction"), and—most damaging—tons and tons of wholly unconvincing scientific documentation spelled out in excruciatingly silly detail. Graceless, pompous, and LONG.

"Fiction...