TECHNICAL
Technical
Guides, manuals, and how-tos — researched, diagrammed, and bound.
Capabilities
Everything it takesto turn an idea into a book.
PenMyBook is the whole workshop — plan, research, write, illustrate, read, edit, and publish. Technical books add diagrams and programs, and can grow with new chapters. Story Studio books add tone, POV, rating, and generated art.
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Genres
Various kinds of book. One workshop.
Technical books get real diagrams. Science fiction, literary fiction, screenplay, and children’s books get generated illustrations and Story Studio controls — not architecture figures.
SCI-FI
Science Fiction
Speculative worlds with rules that hold, illustrated with generated art.
LITERARY
Literary Fiction
Interiority, subtext, quiet tension — a novel in your voice.
SCREENPLAY
Screenplay
INT./EXT., cues, present-tense action: a script you can film.
CHILDREN
Children's
Read-aloud spreads, warm and clear, in the age band you choose.
Archify
Architecture, sequence, dataflow — drawn, not decorated.
Five real Archify figures from the technical pipeline: architecture, sequence, dataflow, workflow, and lifecycle. Not marketing mockups.
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Architecture
Technical books
Postgres Unique Features
The book that put the elephant on the cover. Inside, LISTEN/NOTIFY is drawn as a real protocol sequence diagram — including the transaction-rolls-back alt-path — and MVCC visibility is rendered as the dual-tuple structure it actually is.
Mathematics & science
Figures computed from the mathematics.
Eight figures from the book pipeline. Every curve, area, root and intersection is calculated before it is drawn, so the numbers on the page are the numbers in the maths.
Mathematics
Trigonometry and probability, as textbooks.
Cover on the left. The inside figure sits in the open space beside it — uncropped.
Mathematics · 5 chapters
Trigonometry for High School Students
Angles, identities, and solving triangles
A real high-school textbook cover with the unit circle, the six ratios, the sine/cosine graphs, and the Pythagorean identities all sitting on the front. Inside, the geometry is drawn — labeled right triangles with hypotenuse, opposite, adjacent — not described in prose.
Mathematics · 3 chapters
Learn Probability
Foundations, distributions, inference
A soft watercolour cover with Bayes nets, normal curves, expectation and variance formulas. Inside, the law of total probability is rendered as a tree partitioning the sample space — the way it should be drawn the first time you see it.
History
A Short History of the Manhattan Project
Cover and the story of the book. No flowchart on this row.
History · 4 chapters
Told through Oppenheimer, Fermi, Groves, Szilárd
Even a history book gets a flowchart where one belongs. The cover is rendered as an editorial illustration; inside, the December 2, 1942 first criticality test becomes a vertical event-by-event diagram instead of a paragraph.
Story Studio
Creative controls the planner already has.
Tone, point of view, rating, audience, and how far the prose may wander — the same knobs used in planning, surfaced so fiction is not invisible.
TONE
Tone tags
Dark, wry, lyrical, gritty, whimsical, warm — pick the register the book should hold.
POV
Point of view
First person, third limited, third omniscient, or second.
RATING
Content rating
G / PG / PG-13 / Mature. Children’s defaults to G.
AUDIENCE
Who it’s for
Adult, YA, middle grade — or picture-book age bands.
CREATIVITY
Precise → imaginative
The same five-level knob the planner uses today.
NOT HERE
No mermaid, no programs
Architecture figures and type-checked programs stay on the technical path.
Edit
Editing a book is easy. Ask the bot.
You stay in the book. Tell the editor bot what to change, then see before and after on the same page — not in a side file.
THE BOT
Talk to it like a colleague
Rewrite a paragraph, fix a figure caption, tighten a proof. The bot does the chapter work.
BEFORE / AFTER
See both, in the book itself
The chapter shows what it was and what it is now. Accept when it’s right. Desktop PenBee; phone stays gated.
SEARCH
In-book search
The assistant searches the whole book to find exactly the passage you mean.
COVER
Edit the cover
Change the subtitle and cover colors, with the Reader, shelf, and PDF all in sync.
Plan
Plan it exactly your way.
You decide the subject, the chapters, and the order. The planner adapts to your goal before a single word is written — no fixed template, no category box.
CONVERSE
Conversational planner
Shape the whole book by chatting with an AI planner that streams its thinking in plain language.
YOUR ORDER
Your topics, your sequence
You own the outline — every chapter and subtopic, in the order that matches how you think.
SOURCES IN
Bring your own sources
Feed in the URLs and references you actually trust as the raw material for the book.
LIVE
Live outline panel
Watch the chapter plan assemble in real time beside the conversation as you refine it.
GENRE
Genres & Story Studio
Go beyond technical — pick a genre and use creative controls to shape voice and style.
Research
Grounded where it is true.
Technical books research the web, arXiv, and PDFs you add. Story Studio books are grounded in world and voice — not a paper trail.
RESEARCH
Automated web research
Researches your topic from live, authoritative sources on the web before writing begins.
FRESH
Knowledge-gap driven
Focuses research on what a model can’t reliably know, keeping fast-moving topics current.
GROUNDED
Retrieval-grounded prose
Each chapter draws on the exact source passages retrieved for it, not general recall.
PAPERS
arXiv & PDF ingestion
Pull in papers and PDFs so the book is built on the primary material you point it at.
SAFE
Content safety
Disallowed topics are declined up front, with section-level vetting as it writes.
STORY STUDIO
World and voice, not a paper trail
Fiction is not sold as “authoritative sources.” Research stays on the technical path.
Write
Written long-form — watched live.
Full multi-section chapters in a consistent author voice, with a designed cover, generated in front of you rather than behind a spinner.
LONG-FORM
Real chapters, not summaries
Turns your plan into full, multi-section chapters with depth — the shape of a real book.
VOICE
Consistent author voice
Written in a coherent narrative voice throughout, not disconnected bullet points.
COVER
A designed cover
A cover for your book is generated right after research — you see it before the chapters land.
LIVE
Watch it generate
Live progress shows the current subtopic and how far along it is — no black box.
RESUME
Pause and resume
Step away mid-book and pick up exactly where you left off, nothing lost.
Illustrate
Two paints. Don’t mix them.
Technical books get print-checked figures and programs. Story Studio books get generated illustrations. One pipeline, two paints — not architecture diagrams in a novel.
DIAGRAMS
Real technical diagrams
Architecture, sequence, dataflow, workflow, and lifecycle figures drawn where a paragraph would be weaker.
PRINT
Print-checked, not clip art
Technical figures are measured for print readability. Other genres use generated illustrations instead.
DATA VIZ
Charts inline with prose
Real data-visualization charts sit in line with the chapter, next to the explanation.
CODE
Syntax-highlighted code
Code blocks are Prism-highlighted in the Reader (light/dark). Exported PDF, Kindle, and EPUB stay plain monochrome.
AI EDIT
AI image editing
Regenerate any figure by describing the change you want — the diagram is redrawn to match.
SCALE
Resize any image
Set the display size of any figure in the Reader so it sits exactly how you want it.
One pipeline. Every kind of visual.
Sequence
Flow
Data viz
Geometry
Read
And it reads like a real book.
A built-in Reader with a single Reader ⇄ Book toggle that re-typesets each chapter on warm paper — serif body, drop caps, callouts, definition boxes, diagrams flowed in line.
READER
In-app Reader
Read the finished book chapter by chapter, cleanly rendered, cover-first.
BOOK MODE
Book mode typography
Re-typesets on warm paper with serif body, drop caps, and “Must Know” callouts.
YOURS
Make it comfortable
Adjust trim size, font family, paper tint, and reading width to suit you.
THEMES
Switch the palette
Choose a visual palette — Dusk, Press, Studio, or a deep Forge dark.
Real pages, captured live.
Trigonometry · Chapter 1 opening
"Must Know" callout, opening prose, and the angle-standard-position diagram — paginated as a real chapter page.
Trigonometry · Defining the Six Ratios
Section heading with "Needs review" badge, inline `sin(θ)` / `cos(θ)`, Definition box, and a labeled right triangle below.
Learn Probability · Foundations
Chapter opener with the "Must Know" framing and the probability-model tree drawn into the page flow.
Trigonometry · Laws of Sines & Cosines
New chapter, with its review banner, section heading, and an italic Definition box — typeset like a real textbook.
Extend
Grow and branch it.
A book is never frozen. Add brand-new chapters to a finished technical book, or branch any book into parallel versions and promote whichever one you like.
EXTEND
Add new chapters
Extend a finished technical book with entirely new chapters and full outline freedom. Story Studio books start a new book to continue the story.
VERSIONS
Version tree
Branch a book into parallel versions and explore variations side by side.
PROMOTE
Rename & make live
Name any version and promote the one you want to be the live edition.
Publish
Publish it anywhere.
When it’s ready, bind it. A table of contents is built at bind time, and you choose the format your book needs to ship in.
PDF
Digital PDF
Bind the book to a clean, downloadable PDF with a generated table of contents.
KDP
Print-ready for KDP
A KDP print profile with a wrap cover and preflight — a sellable, printable book.
KINDLE
Kindle export
Export a Kindle-ready package so the book is ready for the e-reader too.
Now forge the one that doesn't exist yet.
Bring a topic and the sources you trust. Walk out with a real book.