Book excerpt: These wickedly authentic introductions to twenty-first-century books preface tomes on teaching English to bacteria, using animated X-rays to create "pornograms," and analyzing computer-generated literature through the science of "bitistics." "Lem, a science fiction Bach, plays in this book a googleplex of variations on his basic themes" (New York Times Book Review). Translated by Marc E. Heine. A Helen and Kurt Wolff Book