Novelet. Illustrated by Finlay. Appeared in the collected works [i]The Trouble with Aliens[/i] (2006).

Short story. Illustrated by Kelly Freas. Part of the Federation of Humanity series.

Short story. Illustrated by van Dongen. Part of the Federation of Humanity Series. Published in anthology [i]Interstellar Patrol II: The Federation of Humanity[/i].

Novelet. Illustrated by Carter. Appeared in the anthologies [i]Mind Partner and 8 Other Novelets from Galaxy[/i] edited by H.L. Gold, published in 1961, [i]Neglected Visions[/i] edited by Joseph D. Olander, Martin Harry Greenberg and Barry N. Malzberg, published in 1979 and [i]The Great SF Stories #22[/i] edited by Isaac Asimov and Martin H. Greenberg, published in 1991. Also appeared in the collected works [i]The Trouble with Aliens[/i] published in 2006.

Short story. Illustrated by George Schelling. Appeared in the collected works [i]Rx for Chaos[/i], published in 2009. Appeared in the anthologies [i]Analog 3[/i], edited by John W. Campbell, published in 1965; [i]A World by the Tale[/i], edited by John W. Campbell, published in 1970; and [i]The Great SF Stories #25 (1963)[/i], edited by Isaac Asimov and Martin H. Greenberg, published in 1992.

Short story. Illustrated by Schoenherr. Part of the series Pandor'as Planet. Appeared in the collected works [i]Pandora's Legions[/i] (2002).

Novelet. Illustrated by Freas. Part of the Pandora's Planet Series.

Short story. Illustrated by Leo Summers. Appeared in the collected works [i]War Games[/i] published in 2008.

Short story. Illustrated by John Schoenherr. Appeared in the collected works [i]Rx for Chaos[/i], published in 2009.

Short story. Illustrated by Brev. Appeared in the collected works [i]War Games[/i], published in 2008.