"As the first general geography of America, the text of Wytfliet's work may, at least in some degree, have contributed to dispel many of the errors regarding the New World . . .  In the history of early cartography, the maps in Wytfliet's Augmentum play the same part for the New World as Ptolemy's do for the old hemisphere, and they give us . . . a valuable summary of the early cartography of America" - Nordenskiold, Facsimile Atlas.

Among the earliest regional maps of North America.  The map of California is the earliest separately printed map of that area; "Anian Regnum" of the northwest coast and Alaska is  Wytfliet's "Norumbega" is "the most accurate antecedent to Joannes de Laet's 1630 "Nova Anglia, Novvum Belgium et Virginia" -Schwartz, The Mapping of America, p. 83.

Only seven complete copies the first edition, first issue have been located: Alden cites two (NYPL and Huntington); three additional institutional copies are noted on OCLC* (U. of Minn., Lehigh, U. of Chicago); and Gallup cites two in private collections.  One of these latter is the copy reproduced in the TOT facsimile atlas; this same copy is also described by Koeman. Two incomplete copies have come to the market over the last decade.

The present conforms to the  A edition described by Skelton, including in the numerous errors in page numeration recorded by Skelton and Gallup.