About 21 minutes
Fort Jefferson National Monument, Florida — Themes and Context
Adventure Picaresque Fiction
4,713 recorded words. Selected by the catalog's stored reading-time estimate.
View Gutenberg source #49968
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Start with a reading choice
Three of the shortest recorded reading commitments in this catalog. Times are estimates, not quality ratings.
About 21 minutes
Manassas (Bull Run) National Battlefield Park [1953] — A Closer Reading
Historical Psychological Social Fiction
4,685 recorded words. Selected by the catalog's stored reading-time estimate.
View Gutenberg source #65498About 22 minutes
Ditching Procedure, B-29s with Four-Gun Turret — Reading Notes
Science Fiction Utopias
4,949 recorded words. Selected by the catalog's stored reading-time estimate.
View Gutenberg source #66799Search the excerpts stored with this catalog
90 of 90 catalog books have a stored excerpt with a Gutenberg source record. Search covers these excerpts only, up to 6,000 characters per book. A missing match does not mean the phrase is absent from the full work.
Read a catalog excerpt example: The Boy Captives: An Incident of the Indian War of 1695 — Context and Discussion
Produced by Anthony J. Adam An Incident of the Indian War of 1695 by John Greenleaf Whittier THE township of Haverhill, even as late as the close of the seventeenth century, was a frontier settlement, occupying an advanced position in the great wilderness, which, unbroken by the clearing of a white man, extended from the Merrimac River to the French villages on the St. Francois. A tract of twelve miles on the river and three or four northwardly was occupied by scattered settlers, while in the…
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Compare two books and their available excerpts
| Book | Recorded words | Estimated minutes | Source |
|---|---|---|---|
| Fort Jefferson National Monument, Florida — Themes and Context | 4,713 | 21 | Gutenberg #49968 |
| Manassas (Bull Run) National Battlefield Park [1953] — A Closer Reading | 4,685 | 21 | Gutenberg #65498 |
| Ditching Procedure, B-29s with Four-Gun Turret — Reading Notes | 4,949 | 22 | Gutenberg #66799 |
How these choices and excerpts are prepared
Choices use stored catalog measurements. Estimates vary with reading speed. A shared category is a catalog label, not a claim that two books have the same argument or literary quality.
Search reads excerpt text stored with this catalog and links to its associated Gutenberg record. The connection is stored in the site database; this tool does not recheck that every excerpt is word-for-word identical to that external record. Excerpt search does not cover every chapter and does not verify historical publication dates.
Catalog snapshot checked: 2026-09-26. Coverage: 90 public books, 90 available source excerpts.
Do more with this book catalog
Welcome to the IGOQO Public Domain Literature Library, a digital collection of 90 classic texts freely available for reading and study. The library is organized into four distinct categories, each with a thematic focus, from adventure and historical fiction to fantasy and science fiction.
This hub guides you through three interactive tools designed to enrich your experience. Whether you are looking for a specific type of story, weighing the merits of different editions, or planning your reading time, these tools help you navigate the collection with confidence.
Browse the catalog by category, use the finder to match books to your interests, compare editions side by side, and estimate your reading commitment. Each title includes key details like word count, reading time, and subject tags to help you choose.
90
books in this catalog
4
catalog categories
90
books with reading-time data
Made for this collection
Ways the catalog data becomes useful
Explore the Collection
Discover 90 public-domain works across four categories: Adventure Picaresque Fiction (23), Fantasy Juvenile Worlds (22), Historical Psychological Social Fiction (23), and Science Fiction Utopias (22). Each category offers a distinct reading experience.
Find Your Next Read
Use the finder tool to filter by category, subject, length, and reading time. Match books to your preferences, whether you seek a quick read or a deep historical dive.
Compare and Plan
Compare different editions and related works with objective metrics. Estimate reading times—the median book is about 47,700 words, taking roughly 208 minutes to read. Plan your literary journey efficiently.
Choosing a Path Through the IGOQO Public Domain Literature Library
With ninety public-domain works spread across four categories, the IGOQO library can feel like a crowded shelf. The Book Finder, Compare Books, and Reading Tracker are meant to be used together, each answering a different question. The Finder narrows the field, Compare tests two or three candidates side by side, and the Tracker turns a chosen book into a plan you can actually keep.
Consider a work like Tactics, Volume 1 (of 2). Introduction and Formal Tactics of Infantry — Edition Insights, which runs to roughly 180,000 words. That is a serious commitment, and the Finder alone might tell you it is long. But Compare can show you exactly how it stacks against a shorter regimental history, and the Tracker can break the reading into daily pages. The tools are not separate; they form a single workflow.
Start with the Finder, but Not for Everything
The Finder is built for narrowing. You can filter by category, word-count length, estimated reading time, chapter rhythm, sentence flow, and even specific subjects like 'Great Britain. Army -- History' or 'Netherlands -- History -- Eighty Years' War, 1568-1648'. If you know you want a quick read, you might set the length to 'short' and the time to 'quick'—that will surface works like the Simple Sabotage Field Manual, which you can finish in under an hour.
But the Finder has limits. It will not tell you whether a book is engaging or well written; it only sorts by measurable traits. That is where the other tools come in.
Use Compare to Test Your Shortlist
Once the Finder has left you with two or three candidates, Compare lets you see them side by side. The tool displays word count, estimated reading time, text sections, sentence flow, chapter rhythm, and subjects. You might discover that a book with a moderate word count actually has very long chapters, or that a shorter book has a denser sentence structure.
For example, you might be choosing between a 50,000-word regimental history and a 120,000-word biography. Compare will show you that the shorter one has 24 text sections while the longer one has 26, meaning the sections are roughly similar in size. That kind of detail helps you gauge pacing before you commit.
Let the Tracker Turn a Choice into a Schedule
After you have picked a book, the Reading Tracker gives you a concrete plan. It records your progress in pages, not chapters or minutes. You set a daily page goal—the default is 20—and the tracker estimates how many days it will take to finish. If you are reading a 180,000-word book, the initial page estimate will be around 720 pages (at 250 words per page), so at 20 pages a day, that is 36 days.
You can adjust the total page count if your own edition differs, and the tracker will recalculate the remaining time proportionally. Because the data stays in your browser, you do not need an account; just open the page and start.
A Simple Sequence
For most readers, the flow is: use the Finder to filter, Compare to decide, and the Tracker to schedule. You might skip Compare if you already know what you want, or skip the Finder if you are browsing. But using all three together gives you a clear path from a crowded catalog to a finished book.