Other considerations
Articles that are plot summaries
Wikipedia should not have a standalone article about a book if it is not possible, without including original research or unverifiable content, to write an article on that book that complies with the policy that Wikipedia articles should not be summary-only descriptions of works, contained in criterion 1 of WP:INDISCRIMINATE.
Self-publication
Self-publication and/or publication by a vanity press do not correlate with notability.[8] Exceptions do exist, such as Robert Gunther's Early Science in Oxford and Edgar Allan Poe's Tamerlane, but both of these books would be considered notable by virtue (for instance) of criterion 1.
Many vanity press books are assigned ISBN numbers, may be listed in a national library, may be found through a Google Books search, and may be sold at large online book retailers. None of these things is evidence of notability.
Books by Wikipedians
That a Wikipedia article on a book has been created by the author of that book or by any other interested party such as an editor or member of the editorial staff of that book has no bearing on whether or not that book is notable, though it does mean the person creating or editing that article has a conflict of interest and is expected to abide by the relevant Wikipedia guideline with regard to conflict-of-interest editing and the mandatory disclosure requirements for paid editing by the Wikimedia Foundation's terms of use. See Wikipedia:Conflict of interest and Wikipedia:Autobiography for more information. Failure to properly disclose a COI may result in the blocking of a user's account, though it is not necessarily a basis for nominating the associated article for deletion.
Online bookstores
A book's listing at online bookstores Barnes & Noble.com and Amazon.com is not an indication of notability because the websites include large numbers of vanity press publications. A listing at any other online bookstore that includes large numbers of vanity press publications should be treated in the same way.
Not-yet-published books
Articles about books that are not yet published are accepted only if they are not excluded by the Wikipedia is not a crystal ball policy, and only under criteria other than those provided by this guideline, typically because the anticipation of the book is notable in its own right. In such cases there should be independent sources which provide strong evidence that the book will be published, and which include the title of the book and an approximate date of publication.
Non-contemporary books
The vast majority of books whose Wikipedia articles are nominated for deletion, and whose notability could reasonably be called into question, are contemporary. Nevertheless, the notability of books written or published earlier may occasionally be disputed and the criteria specified above, intended primarily for contemporary books, may be unsuitable because they would be too restrictive and would exclude articles on books that are worthy of notice.
Common sense should prevail. In such cases, possible bases for a finding of notability include, in particular, how widely the book has been cited or written about, the number of editions of the book, whether it has been reprinted, the fame that the book enjoys or enjoyed in the past, its place in the history of literature, its value as a historical source and its age.
Academic and technical books
Academic and technical books serve a very different function and come to be published through very different processes than do books intended for the general public. They are often highly specialized, have small printing runs, and may only be available in specialized libraries and bookstores. For these reasons, most of the standards for mainstream books are inapplicable to the academic field because they would be too restrictive and would exclude articles on books that are worthy of notice. Again, common sense should prevail. In such cases, possible bases for a finding of notability include, in particular, whether the book is published by an academic press,[9] how widely the book is cited by other academic publications or in the media,[10] the number of editions of the book, whether one or more translations of the book have been published, how influential the book is considered to be in its specialty area, or adjunct disciplines, and whether it is, or has been, taught, or required reading, in one or more reputable educational institutions.