If you’ve ever wondered exactly how the American Library Association decides what counts as an informational book for the Robert F. Sibert Medal, you’re not alone. Librarians, authors, and educators ask this question constantly because the definition shapes everything from which books get nominated to how children learn nonfiction. In this guide, I’ll walk you through the official definition, the seven criteria judges actually use, what’s excluded, and how the Sibert differs from the Newbery, so you can apply this standard with confidence.
Table of Contents
The Official ALA Definition of an Informational Book
The Association for Library Service to Children (ALSC) defines informational books with one precise sentence. According to the ALA, “Informational books are defined as those written and illustrated to present, organize, and interpret documentable, factual material.” This single phrase is the foundation for everything the Sibert Medal evaluates, and quoting it directly is the fastest way to understand what makes a book eligible.
Three key verbs carry the weight of the definition. “Present” means the book delivers factual content to readers clearly and directly. “Organize” means the structure (chapters, sections, headings, sequence) helps readers navigate and understand the material. “Interpret” means the author goes beyond raw facts to explain meaning, context, and significance. A book that only lists facts without organizing them, or one that organizes without interpreting, falls short of the Sibert standard.
The phrase “documentable, factual material” is equally important. Documentable means the content can be verified through sources, research, or evidence. Factual means it is grounded in reality rather than invented or imagined. This combination is what separates informational books from fiction, even fiction that explores real events. A historical novel about the moon landing is not informational; a documentary-style book about Apollo 11 with verifiable mission data is.
I find this definition useful because it works as a checklist. When you pick up a candidate book, ask: does it present factual material, organize it effectively, and interpret it for the reader? If the answer to all three is yes, you’ve got a strong informational book by ALA standards.
History of the Robert F. Sibert Medal
The Sibert Medal was established in 2001 to recognize the most distinguished informational book published in the United States each year. The award honors Robert F. Sibert, longtime president of Bound to Stay Bound Books, a library prebinding company based in Jacksonville, Illinois. His lifelong dedication to children’s librarianship and quality books inspired the ALA to create the medal in his name.
Administered by the Association for Library Service to Children (ALSC), a division of the American Library Association, the Sibert joins a small group of prestigious ALA youth media awards. Unlike the Caldecott (illustration) or Newbery (writing for children), the Sibert focuses exclusively on nonfiction for young readers. The first medal was awarded in 2002 to Black and White by David Macaulay, though the award actually covers books published in 2001.
Since its founding, the Sibert has grown into one of the most trusted markers of excellence in children’s nonfiction. Schools, libraries, and parents use Sibert winners and honor books as a curated list of high-quality informational titles worth reading.
Complete Sibert Medal Eligibility Requirements
To be considered for the Sibert Medal, a book must meet several specific requirements. Understanding these rules helps authors, publishers, and selectors know what qualifies.
First, the book must be intended for children from birth to age 14. This broad age range covers board books for infants, picture books for early readers, middle-grade nonfiction, and even young adult titles that remain accessible to younger readers.
Second, the book must be first published in the United States in English during the preceding year. This means U.S. first editions qualify, while foreign editions or translations published abroad do not, even if later released in the American market. The “preceding year” rule ensures the medal reflects current publishing, not backlist titles.
Third, the book must be an original work. Reprints, compilations, or books that primarily repackage previously published material are not eligible. This rule encourages new contributions to children’s nonfiction rather than recycled content.
Fourth, the book must be a self-contained work, though it can include an author and illustrator. Both creators are recognized when the visual presentation is integral to the informational content. This is why many Sibert winners name both the author and illustrator on the medal.
Fifth, the author must be a citizen or resident of the United States. International authors whose books meet all other criteria but who live abroad are not eligible, even if published by a U.S. press.
The Seven Criteria Judges Use to Evaluate Informational Books
Once a book is eligible, the Sibert committee applies seven evaluation criteria. These criteria determine which eligible book rises to the level of “distinguished” and earns the medal. Let me walk through each one.
1. Excellent, Engaging Use of Language
The committee looks for writing that is both accurate and compelling. A great informational book reads beautifully. It uses precise vocabulary, varied sentence structure, and a voice that draws readers into the subject. Dry, encyclopedic prose rarely wins the Sibert; instead, authors who treat nonfiction as a craft, not just a delivery system, stand out.
2. Distinctive, Engaging Visual Presentation
Visuals matter as much as words in the Sibert framework. Photographs, illustrations, diagrams, charts, infographics, and design choices all contribute to how readers absorb information. The committee evaluates whether the visuals enhance understanding, not just decorate the page. Books where illustrations actively teach something, such as a labeled diagram of a cell or a timeline showing historical events, score highly here.
3. Appropriate, Effective Organization and Documentation
How information is arranged shapes how well readers learn it. The committee assesses whether chapters flow logically, whether headings guide readers, and whether the sequence builds understanding. Documentation, including source notes, bibliographies, and citations, demonstrates that the author has done serious research and gives readers paths to learn more.
4. Clear, Accurate Presentation of Facts, Concepts, and Ideas
Accuracy is non-negotiable for the Sibert. The committee verifies that facts are correct, that explanations of complex concepts are clear, and that ideas are presented without distortion. Errors, oversimplifications that mislead, or unbalanced viewpoints can disqualify an otherwise strong book.
5. Appropriate Style
Style refers to the tone and approach the author takes. A book about death for young children needs a different style than one about space exploration for middle graders. The committee evaluates whether the writing style matches the subject matter and the intended age group.
6. Supportive Features
Supportive features include any elements that help readers use the book effectively. These commonly include an index, table of contents, glossary, maps, timelines, sidebars, captions, and source lists. Strong informational books treat these features as essential tools, not afterthoughts.
7. Child-Interest Factor
Finally, the committee considers whether the book will engage its intended young audience. A book might be accurate, well-organized, and beautifully illustrated, but if it bores nine-year-olds, it fails this criterion. The Sibert rewards books that respect children’s intelligence and curiosity.
What the Sibert Medal Excludes: Poetry and Folktales
The ALA definition is broad, but two specific categories are explicitly excluded from Sibert consideration. Poetry is not eligible, even when the poems focus on factual or historical topics. A collection of poems about the Civil War, for instance, would not qualify for the Sibert Medal.
Folktales and traditional literature are also excluded. Retellings of fairy tales, legends, myths, or fables, even when culturally significant, do not qualify. The Sibert is reserved for books grounded in verifiable, factual material.
Beyond these two exclusions, the ALA places no other restrictions. Fiction, picture books, graphic novels, and even narrative-driven works can qualify, provided they meet the definition of presenting, organizing, and interpreting documentable factual material. This openness is why hybrid works like narrative nonfiction can and do win the Sibert.
What “Distinguished” Means in Practice?
Eligibility gets a book into the running, but the Sibert is awarded only to the most distinguished informational book of the year. What does “distinguished” actually mean in practice? The committee applies the seven criteria collectively, looking for books that excel across the board rather than shining in just one area.
A distinguished book typically combines research depth with accessibility. It treats its young readers as capable of handling complex ideas, then presents those ideas in language they can follow. Recent winners like Fox at Night and The Mona Lisa Vanishes show how varied distinguished informational books can be. Some are quiet, observational nature titles; others are fast-paced narratives about historical events. What unites them is craft.
In my own reading of Sibert winners, I notice a pattern: the books that win tend to take risks. They don’t just report facts. They interpret them. They make readers see a familiar subject differently or open a window onto something entirely new. That’s the spirit of “distinguished” as the ALA applies it.
Sibert Medal vs Newbery Medal: Key Differences
The Sibert and Newbery Medals are often mentioned together because both come from ALSC and recognize excellence in children’s books, but they focus on very different things. The Newbery Medal honors the author of the most distinguished contribution to American literature for children, and that contribution is most often fiction, though the Newbery does accept nonfiction as well.
The Sibert, by contrast, is restricted specifically to informational books. Poetry and folktales are excluded from Sibert but can compete for the Newbery. A fictional chapter book would never be considered for the Sibert, but it might win the Newbery. Conversely, a factual photo-essay about coral reefs would be eligible for Sibert but not Newbery in most years.
Hybrid books that blend factual and fictional elements create interesting classification questions. A book grounded in real history but told through invented characters might fall outside both awards, or it might be eligible for one. The Sibert definition requires that the book present, organize, and interpret documentable factual material, which rules out purely fictional storytelling even when it carries factual information.
In practice, the two medals complement each other. A library building a strong children’s collection will use Newbery winners for fiction and Sibert winners for nonfiction, knowing each list has been curated against rigorous, age-appropriate standards.
Navigating Hybrid Books: Informational Fiction vs Informational Nonfiction
One of the most common questions librarians and educators ask is how to classify books that mix facts with storytelling. The phrase “informational fiction” gets used in many ways, sometimes to mean fiction that contains factual information, sometimes to mean narrative nonfiction that reads like fiction.
Under the Sibert definition, narrative nonfiction qualifies when it is written and illustrated to present, organize, and interpret documentable factual material. The key is that the facts remain verifiable, and the book’s primary purpose is to inform, even if the storytelling techniques are borrowed from fiction. Books like Honeybee or The Skull read with novelistic pacing, but they meet the Sibert standard because their subject matter is factual and their sources are documented.
Pure fiction that happens to include factual information, such as a mystery novel set during the Gold Rush, does not qualify for the Sibert. The book must be designed to inform, not just to entertain with facts as backdrop. This distinction can be subtle, but the ALA criteria help: ask whether the book’s purpose is to teach, and whether the facts presented can be documented.
For educators and librarians, my practical advice is to apply the Sibert definition as a sorting tool. If a book primarily aims to inform and the content is verifiable, it belongs in your informational collection. If it primarily aims to tell a story, it belongs in fiction, regardless of how much factual content it contains.
Frequently Asked Questions About the Sibert Definition
What is considered an informational book?
According to the American Library Association, informational books are those written and illustrated to present, organize, and interpret documentable, factual material. The content must be verifiable and grounded in facts rather than imagination.
What qualifies a book for the Sibert Medal?
A book qualifies for the Sibert Medal if it is an original informational work first published in the United States in English during the preceding year, intended for children from birth to age 14, and written by a U.S. citizen or resident. Poetry and folktales are excluded.
Who was Robert F. Sibert?
Robert F. Sibert was the longtime president of Bound to Stay Bound Books, a library prebinding company based in Jacksonville, Illinois. He dedicated his career to children’s librarianship, and the ALSC created the medal in his honor in 2001.
What are the seven criteria for the Sibert Medal?
The seven criteria are: excellent use of language, distinctive visual presentation, appropriate organization and documentation, clear and accurate presentation of facts, appropriate style, supportive features such as indexes and glossaries, and child-interest factor.
What is the difference between the Sibert Medal and the Newbery Medal?
The Sibert Medal honors the most distinguished informational book for children, while the Newbery Medal honors the most distinguished contribution to American children’s literature, which is most often fiction. The Sibert excludes poetry and folktales; the Newbery does not.
Who administers the Sibert Award?
The Association for Library Service to Children (ALSC), a division of the American Library Association, administers the Sibert Award. The committee reviews eligible books each year and announces the winner at the ALA midwinter meeting.
Why the Definition Matters for Authors, Educators, and Librarians
The ALA definition of an informational book is more than a technical rule. It sets the standard for what counts as quality nonfiction for young readers. Authors use it to shape manuscripts before submission. Educators use it to evaluate classroom resources. Librarians use it to build collections that genuinely inform. Understanding how “informational book” is defined for the Sibert Medal gives you a reliable filter for choosing, recommending, or creating books that meet the highest bar in children’s nonfiction.
For 2026 and beyond, this definition continues to guide the ALA’s recognition of distinguished informational books, making it one of the most useful tools you can keep in your reading toolkit.