Notes: • "First Printing, December, 1963" • This statement differs from all previous editions/printings that have "First Printing, January, 1964" • Year from catalogue # which places this publication in early 1976 [see ISFDB publisher pages for Signet] • Third printing by number line 3—10; refers to Canadian printings as there is a US printing with the same catalogue # and price that is a fifth printing • The artist is not credited, no visible signature • Stories are listed in the table of contents with a "sector title" and then their usual title: e.g. "Section Vermilion" and "A Kind of Artistry". • The story headings in the book include only the sector headings but are indexed here with the usual titles as given in the table of contents. • In addition, there is a short introductory piece of fictional material prefacing each story after the "section" title • The artist is not credited, no visible signature on the artwork • Cover printed in the US, book in Canada • OCLC has no record for the catalogue# or printing