Martayan Lan ranks among the leading dealers in rare books and manuscripts in the world, covering early printed books in all subjects from the fifteenth century to the year 1800. We canvas the globe to find and acquire books that are rare, illustrated, important in the history of their subjects and in fine condition; whenever possible, we endeavor to handle copies of such works which are themselves significant, whether owing to former owners who were historically important, an unusual or beautiful binding, or the presence of interesting annotations. Although we pride ourselves on handling books in any subject that meet one or more of these criteria, fields of particular strength include the history of science, (especially the quantitative sciences of measurement), travel and discovery, and art and architecture. With world-wide sources of supply developed over a generation, we deal in books of acknowledged importance and those canonized on such collector's lists as Printing and the Mind of Man or Horblit's 100 Books Famous in Science.