An anthology of original science fiction honoring Isaac Asimov’s 50th anniversary in the genre.The nonmetallic Isaac or it’s a wonderful life / Ben Bova –Strip-runner / Pamela Sargent –The asenion solution / Robert Silverberg –Murder in the urth degree / Edward Wellen –Trantor falls / Harry Turtledove –Dilemma / Connie Willis –Maureen Birnbaum after dark / George Alec Effinger –Balance / Mike Resnick –The present eternal / Barry N. Malzberg –PAPPI / Sheila Finch.The reunion at the mile-high / Frederik Pohl –Plato’s cave / Poul Anderson –Foundation’s conscience / George Zebrowski –Carhunters of the concrete prairie / Robert Sheckley –The overheard conversation / Edward D. Hoch –Blot / Hal Clement –The fourth law of robotics / Harry Harrison –The originist / Orson Scott Card –Afterword, a word or two from Janet / Janet Jeppson Asimov –fifty years / Isaac Asimov.Isaac’s favoriteThe immortal bard –The ugly little boy –The last question. Appreciations and Susan and Bayta and me / Karen Anderson –An appreciation / Poul Anderson –My brother Isaac / Stanley Asimov –Isaac / Ben Bova –An unwritten letter to our dear friend Isaac Asimov / Catherine Crook de Camp –Isaac and I / L. Sprague de Camp –Isaac Asimov / Gordon R. Dickson –Isaac / Harlan Ellison –Appreciation of Isaac Asimov / Sheila Finch –In memoriam / Martin H. Greenberg –Isaac Asimov, mystery writer –Edward D. Hoch –From the heart’s basement / Barry N. Malzberg.In memoriam / Shawna McCarthy –Part of my life / Frederik Poul –An appreciation of Isaac / Mike Resnick –Isaac Asimov / Carl Sagan –Isaac an appreciation / Pamela Sargent –An Asimov appreciation / Stanley Schmidt –Refections on Isaac / Robert Silverberg –Isaac / Janet Asimov –Isaac an affectionate memory / Norman Spinrad –Appreciation of Isaac / Edward Wellen –In memoriam / Sheila Williams –Our mutual friend / Connie Willis –The last interview — George Zebrowski.