Italy and Basel: The designs and woodblocks were prepared in Italy and the blocks sent to Basel, where Oporinus's shop set the type, printed sheets, and assembled an exceptionally demanding folio. Vesalius worked to control the relationship between words and images, but draughtsmen, block cutters, compositors, press workers, paper makers, and binders gave that plan material form (Cambridge University Library; Kusukawa 2012).
June 1543: The first edition's colophon names Basel, Oporinus, and June 1543. A surviving copy catalogued by Wellcome has 663 numbered pages despite an irregular printed pagination, followed by index matter—useful reminders that “seven books” means seven divisions within a single large publication, not seven modern volumes (1543 copy and catalogue).
The 1543 Epitome: A separate, much shorter companion rearranged the project for visual study. Its oversized sheets included plates intended to be cut and layered into a paper figure. It was not merely the Fabrica with paragraphs removed; format changed the kind of anatomical work a reader could do (Cambridge University Library).
1555: Oporinus issued a revised second edition. Vesalius altered anatomy, exposition, typography, captions, and images, and a new frontispiece was cut. The scale of revision makes “the Fabrica” an edition-dependent source rather than a fixed 1543 statement (Nutton 2012).
After 1555: Vesalius annotated a copy with hundreds of further changes for a projected third edition that never appeared. Most were stylistic or clarifying, with some corrections to pictures and little new anatomy; the evidence shows continuing revision rather than a finished revelation (Nutton 2012).