Collects thirteen stories, including:
"Founding Father" by J. F. Bone
"Mating Call" by Frank Herbert
"Nice Girl With Five Husbands" by Fritz Leiber
"Prone" by Mack Reynolds
"The Education of Tigress McCardle" by C. M. Kornbluth
"Now Inhale" by Eric Frank Russell
"The Back of Our Heads" by Stephen Barr
"Button, Button" by Isaac Asimov
"The Deep Down Dragon" by Judith Merril
"The Kappa Nu Nexus" by Avram Davidson and Morton Klass
"Idiot Solvant" by Gordon R. Dickson
"Counter Security" by James White
"The Dreistein Case" by J. Lincoln Paine

Ratings:
"Founding Father" by J. F. Bone (**** 1/2) excellent story, plot, original
"Mating Call" by Frank Herbert (***) interesting
"Nice Girl With Five Husbands" by Fritz Leiber (*** 1/2) predictable but well written
"Prone" by Mack Reynolds (*) boring, methodical
"The Education of Tigress McCardle" by C. M. Kornbluth (***) only par for Kornbluth
"Now Inhale" by Eric Frank Russell (*** 1/2) interesting, suspenseful for a good part of the story
"The Back of Our Heads" by Stephen Barr (***) interesting
"Button, Button" by Isaac Asimov (** 1/2)
"The Deep Down Dragon" by Judith Merril (****) fun and adventurous with a cool idea.
"The Kappa Nu Nexus" by Avram Davidson and Morton Klass (*) Frat gets girls. Childish story told in stuffy British colloquial.
"Idiot Solvant" by Gordon R. Dickson (**)
"Counter Security" by James White (***) Mystery, well-written.
"The Dreistein Case" by J. Lincoln Paine (*) Uh, what? (