Poetry
Love Poems: For the Heart
Romance, reflection and poetry for the heart.
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SPHERE™ Library
A global home for books, public-domain classics, learning materials and independent voices—supported by OUDI D2 intelligence and designed for readers in 21 languages.
35+Barnes & Noble listings
21language discovery
Globalpublic-domain resources
OUDI D2learning support
Featured Author Collection
Books by Eric Ludwig Knipe
Discover fiction, history, biography, sports, science, poetry and books for young readers. Each listing connects readers with an authorized retailer search.
Historical Fiction
Whitehall 1909: Live Another Day
Intrigue, history and adventure surrounding Whitehall.
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Thriller
Lipstick Assassins: Collector’s Full Cover
The complete front, spine and back presentation.
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Biography & Film
Chasing Oscar
Grace, strength and becoming in the world of cinema.
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The Last Moonwalk: Man in the Mirror
A cultural story inspired by an unforgettable performer.
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Biography & Culture
Midnight on Fifth: The Untold Story of a Modern Icon
An exploration of fame, identity and modern culture.
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Sports
Garland Randel Cricket: The Birth of a Franchise
A story of cricket, ambition and the creation of a franchise.
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Americana
My Country: On the Yellowstone
Landscape, heritage and life around Yellowstone.
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Americana
My Country: Yellowstone Edition
A sweeping American story of courage, country and the West.
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Americana
My Country: Heritage Edition
A portrait of Yellowstone heritage and the American landscape.
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Fantasy
Tyr and Thor: War Beyond the Mountain
Mythic heroes, ancient powers and an epic conflict.
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Historical Fiction
Silent Love: Whispers in the Dark
A story of love, courage and survival set against wartime Berlin.
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Royal Biography
Letizia: Elegance and Power
A portrait of public service, elegance and leadership.
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Royal Biography
Sofia: Grace and Light
A story of grace, family and public life.
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Royal Biography
Felipe VI: Elegance and Authority
A modern portrait of leadership and constitutional service.
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Music History
The Beatles: Their First Bite of the Apple
A journey through music, culture and enduring influence.
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Fiction & Music
Midnight in New York: Chairman of the Board
A New York story of music, memory and ambition.
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Science & Technology
ODIN Human-Centric Robotics: The New Frontier
Human-centered robotics, intelligence and the future.
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Children’s Books
Cookies and Cream Adventure: Pinkberry Amusement Park
A joyful illustrated adventure for young readers and families.
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Children’s Books
Cookies and Cream Adventure, Vol. 2: The Doll Factory Adventure
Charlotte and Isabella discover the magical Willow Green Doll Factory.
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Children’s Books
Willow Green Adventures
Friendship, imagination and discovery for young readers.
View at Barnes & Noble →World-Class Public-Domain Reading
Great books across cultures
Explore literature, history, philosophy and learning from many parts of the world. Copyright status and access can differ by country; readers should use the authorized source available in their territory.
Pride and Prejudice
Jane Austen
Classic Fiction
The Adventures of Sherlock Holmes
Arthur Conan Doyle
Mystery
Don Quixote
Miguel de Cervantes
Classic Fiction
The Divine Comedy
Dante Alighieri
Poetry & Classics
The Odyssey
Homer
Epic & Mythology
The Tale of Genji
Murasaki Shikibu
Classic Fiction
The Analects
Confucius
Philosophy
The Republic
Plato
Philosophy
The Prince
Niccolò Machiavelli
History & Politics
Narrative of the Life of Frederick Douglass
Frederick Douglass
History & Biography
The Souls of Black Folk
W. E. B. Du Bois
History & Society
A Christmas Carol
Charles Dickens
Classic Fiction
Frankenstein
Mary Shelley
Science Fiction
The Count of Monte Cristo
Alexandre Dumas
Adventure
The Secret Garden
Frances Hodgson Burnett
Young Readers
Anne of Green Gables
L. M. Montgomery
Young Readers
The Wonderful Wizard of Oz
L. Frank Baum
Young Readers
The Story of My Experiments with Truth
M. K. Gandhi
Biography & Philosophy
Trusted Digital Collections
Libraries without borders
SPHERE guides readers to respected digital-library collections rather than copying or republishing books without authorization.
Project Gutenberg
Free eBooks of works whose U.S. copyright has expired.
Visit official collection →Standard Ebooks
Carefully produced, accessible editions of public-domain literature.
Visit official collection →Library of Congress
Books, manuscripts, photographs, recordings and learning collections.
Visit official collection →Europeana
European cultural heritage from libraries, archives and museums.
Visit official collection →Internet Archive
A nonprofit digital library with books, media and historical collections.
Visit official collection →HathiTrust Digital Library
Research-library collections with public-domain access where available.
Visit official collection →Public-domain notice: A work may be public domain in one country and protected in another. SPHERE should link to lawful sources and display regional availability instead of hosting protected material without permission.
Dictionary & Language Center
Words from around the world
Look up meanings, spelling, pronunciation, usage and word origins across the 21 SPHERE languages, with OUDI D2 support for bilingual learning and plain-language explanations.
DefineUnderstand meanings and usage.
PronouncePractice sounds and syllables.
TranslateCompare words across languages.
LearnBuild vocabulary and study lists.
EnglishEnglish
Definitions, spelling, pronunciation, usage and word origins.
Open dictionary →SpanishEspañol
Definiciones, pronunciación, gramática y uso.
Open dictionary →FrenchFrançais
Définitions, prononciation, étymologie et usage.
Open dictionary →GermanDeutsch
Definitionen, Aussprache, Herkunft und Verwendung.
Open dictionary →ItalianItaliano
Definizioni, pronuncia, etimologia e uso.
Open dictionary →PortuguesePortuguês
Definições, pronúncia, etimologia e uso.
Open dictionary →Arabicالعربية
المعاني والنطق وأصول الكلمات والاستخدام.
Open dictionary →Chinese中文
释义、发音、词源和用法。
Open dictionary →Japanese日本語
意味、発音、語源、用法。
Open dictionary →Korean한국어
정의, 발음, 어원 및 용례.
Open dictionary →Hindiहिन्दी
अर्थ, उच्चारण, व्युत्पत्ति और प्रयोग।
Open dictionary →Urduاردو
معانی، تلفظ، اشتقاق اور استعمال۔
Open dictionary →RussianРусский
Значения, произношение, этимология и употребление.
Open dictionary →UkrainianУкраїнська
Значення, вимова, етимологія та вживання.
Open dictionary →PolishPolski
Definicje, wymowa, etymologia i użycie.
Open dictionary →DutchNederlands
Definities, uitspraak, herkomst en gebruik.
Open dictionary →SwedishSvenska
Definitioner, uttal, etymologi och användning.
Open dictionary →TurkishTürkçe
Tanımlar, telaffuz, köken ve kullanım.
Open dictionary →GreekΕλληνικά
Ορισμοί, προφορά, ετυμολογία και χρήση.
Open dictionary →Hebrewעברית
הגדרות, הגייה, אטימולוגיה ושימוש.
Open dictionary →LatinLatina
Definitiones, pronuntiatio, etymologia et usus.
Open dictionary →Dictionary notice: SPHERE links to authorized dictionary services. Definitions and databases remain the property of their respective publishers or open-knowledge communities.
OUDI D2 Learning Support
Learn with OUDI D2™
Move from discovery to understanding. OUDI D2 can help readers explore subjects, build reading plans, understand vocabulary, organize notes and discover related learning pathways.
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Bring your books and learning materials to SPHERE
Connect authorized books, lessons, courses and educational resources with worldwide readers through multilingual discovery, promotion and community engagement.
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