A companion book for your online course (that students actually keep)

Self-paced courses on the big marketplaces finish below 15% of the time, and independent platforms don’t do dramatically better at 30-50%, according to Ruzuku’s 2026 completion-rate benchmarks. Half of everyone who drops out does it in the first two weeks, usually citing lack of time (38%) or lost motivation (25%) rather than the material being wrong for them, per Skillademia’s 2026 completion statistics. A video lesson that ends with “now go apply this” and nothing else to hold onto is asking students to build their own structure at exactly the point they’re most likely to quit.

Why a PDF outperforms a “resources” tab

Course platforms already let you attach a resources tab, a linked Google Doc or a slide deck export next to each module. None of it survives the way a bound workbook does. A tab full of loose links gets abandoned the moment a student closes the browser tab; a Google Doc invites nobody to write in the margins. A designed companion book someone downloads once behaves like the printed workbooks bundled with cohort-based bootcamps, which post completion rates in the 72-90% range compared to a self-paced course sitting alone in a library. The book isn’t doing the teaching. It’s giving the student a physical container for the 38% of dropouts who say they simply ran out of structured time, by turning “watch six videos this week” into a checklist with a page number.

Sellers on the workbook side of this market already treat the companion as the product, not the freebie: a $29 workbook next to a free cheat sheet, with the video course itself as the $199 upsell. A course creator selling the workbook and the video separately is really selling the same throughline twice, which is the strongest argument for shipping them together as one thing a student pays for once and keeps.

What makes a companion book different from a slide export

Three structural choices separate a workbook students finish from a PDF that hits download and stays in the folder:

• Continuous numbering across the whole book, not per-module resets. InkMagnet’s typesetting engine supports an “items” numbering mode built for exactly this: every exercise, worksheet or reflection prompt gets a running number (Exercise 1, Exercise 2, Exercise 3) that keeps counting through chapter breaks instead of resetting to 1 at the start of each module. You can set the label yourself (Exercise, Worksheet, Prompt) from the book’s numbering settings after generation, and it stays consistent whether the student is on module 2 or module 9.
• A structure a student can skim before committing. The book ships with a clickable table of contents and a chapter-opening page for each module, so someone previewing the workbook on a sales page can see the shape of eight weeks of curriculum in one scroll, not just a course outline copied into a PDF.
• Room to actually write. A workbook that’s just paragraphs restating the video script gives a student nothing to do with a pen. Numbered prompts and worksheets need blank space built into the layout, which is a typesetting decision, not something a Word export handles by default.

Building it without adding a second production pipeline

The practical blocker for most course creators isn’t wanting a companion book, it’s that producing one usually means hiring the $30-45/hour freelance book designer who formatted the last one, on top of the writer or the creator’s own time turning a curriculum outline into workbook prose. That’s a second production pipeline stacked on top of the course itself, with its own timeline and its own round of revisions.

InkMagnet takes the curriculum outline as the topic, researches supporting material where the course needs it, writes the workbook prose module by module, and typesets the result, including the “items” numbering for exercises, into a press-ready PDF and a store-ready EPUB in one pass. The same four-step pipeline that writes any InkMagnet book applies here: submit the curriculum as the topic, approve the chapter-by-chapter structure before a word of workbook copy gets written, and download the finished pair of files once it’s done. A 76-115 page Extended companion, the range most eight-to-twelve-week curricula fill, runs $19.99 as a one-time cost with full commercial rights, not a per-seat license or a monthly design retainer.

If a cohort’s format changes mid-run, the built-in WYSIWYG editor lets you rewrite a module’s exercises and recompile the whole book without losing edits already made elsewhere, which matters more for a course companion than almost any other use case: curricula get revised between cohorts, and a workbook that can’t keep up with the syllabus stops being the thing students trust.

Pricing it against what a companion book is actually for

A companion book earns its place in a course bundle two ways: it’s the deliverable that makes a $199-$499 cohort feel worth the price on day one, and it’s the artifact a student still has open on their desk in week six when the video platform login has gone stale. Turning a single deliverable into something students keep is the same mechanic that makes a lead magnet convert, just applied to a paying cohort instead of a landing page. It also travels: a printed or exported PDF workbook survives a platform migration in a way that video hosted inside Kajabi or Thinkific never does, which matters the day a creator switches platforms and needs students to keep their progress intact.

Compare the one-time cost against a semester of platform fees at InkMagnet’s tier pricing, or start from your own curriculum outline and see the module structure ready for approval within minutes.