How to publish a book series

02

How long does KDP say linking takes, and what does the series page include?

Live titles produce a series page within 72 hours. If there are no live main titles, the page appears within 72 hours after they go live. Readers open it from the Book X of Y link. The article says pages exist on listed marketplaces and that not every feature is on every marketplace. That country list did not render in the copy checked. A series with a paperback or hardcover is not available on Amazon.co.jp. Multiple authors are not supported inside KDP. The store column says to contact KDP for that kind of series. Readers see the book count, ebook 1-click ordering, each format, and related items such as prequels, novellas, and box sets. 1-click ordering is off when the series has more than 25 titles, multiple editions, an item that is not on Kindle, any pre-order, fewer than two live titles, or a paperback or hardcover. It is also off for what KDP calls Series Read for Free with 1-click, which the page does not define. A pre-order still shows, and the reader can pre-order that book alone. Paperbacks are added to the cart one at a time.[411][413]

• The 72 hours is KDP's statement. It is not a measured listing time for every marketplace.
• A pre-order stays on the page and turns 1-click ordering off.

• How to set up a book preorder

03

What do Draft2Digital, Kobo, and Apple Books state about series metadata?

Draft2Digital's metadata article, modified 5 February 2025, lists series name and volume number in the metadata shared by the ebook and the print book. It does not say whether the number is required, whether a decimal works, or how long linking takes. Kobo's guidelines, updated 18 September 2026, say not to put the series name or book number in the title or subtitle. The series article, updated 20 July 2026, requires the same series-name text on every book and a volume number that is a whole number, not a word or a Roman numeral. It also allows 0 and decimals such as 1.5 or 2.5. The product page usually updates in about 24 hours, and search can take longer. The linking article, updated 18 March 2026, says the series name and the author name must match, including spaces and periods. If they match and the books stay separate, Kobo can connect them from the series name, titles, ISBNs, and numbers. It cannot link books whose main author names differ. Apple asks for a series name, a numeric sequence number such as 3, and display text. The default display is Book. Volume, Prequel, or Novella can be substituted. The name must match exactly. Ordered series need consecutive numbers. The article does not say whether 1.5 is accepted. The series appears after two or more books are available and the formatting guidelines are met. A later book is added once it is approved. The authors' product-page article says to include each book's number and states no hour count.[414][415][416][417][418][419]

• Kobo allows a decimal. Draft2Digital does not say whether it does.
• Apple's stated condition is two available books plus approval, not a number of hours.

• How to go wide

04

What do Barnes and Noble Press and IngramSpark state about series fields?

IngramSpark's title metadata guide, checked 17 October 2026, puts series name and series number in their own fields and says to keep them out of the title and subtitle. The name should be spelled the same way on every book, and it can be added after publication. A numbered series uses an integer such as 1, 2, or 3. The number is optional when reading order does not matter. No linking time is stated. The genre-fiction article of 16 July 2025 says to use those fields, mention the series in the description, and leave it out of the title and subtitle. Barnes and Noble Press's checklist of 14 January 2015 says the series name in the series field must stay consistent, including a word such as the. A decimal such as 3.5 will not register as the next book. The post does not define a series-number field or a linking time. A current Press page that defines both fields was not among the pages checked.[420][421][422]

• IngramSpark specifies an integer. The 2015 Barnes and Noble note says a decimal will not register as the next book.

• Book distribution and direct sales

05

What does KDP state about preorders and Kindle Unlimited, and is there a release cadence?

KDP says pre-orders are supported on the series page. The book still shows, the reader can pre-order it alone, and 1-click ordering stays off while any pre-order is in the series. The file deadline and the lead time are on the preorder answer. The series pages do not say that a series must be in KDP Select or Kindle Unlimited. Series Read for Free with 1-click is only a reason 1-click ordering is unavailable. None of the KDP, Draft2Digital, Kobo, Apple, Barnes and Noble Press, or IngramSpark pages checked publishes a number of days or months that should separate one book from the next. A series page for finished books is also not a serial published in parts.[413][414][416][418][421][422]

• A preorder is a scheduling tool. It is not a recommended gap.
• Kindle Unlimited eligibility for a series is not stated on the series pages checked.

• How to set up a book preorder
• Serial fiction publishing platforms
• How to launch a book you self-publish

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