"Here are 50* of the greatest debut science fiction and fantasy novels ever written: books that announced the arrival of serious talents arriving on the literary scene, books sturdy enough to support dozens of imitators that followed, books so good it almost didn't matter if their authors ever published again (thankfully, most of them have)."
[Editor's note: Because we initially erroneously included a few books on this list that were not, in fact, debuts, careful readers will note the current list stands at 52 titles; we wanted to make sure we did feature 50 debuts, but we didn't want to strike anyone already featured. Fair is fair.]