Corydon Publications launches subscription for avid readers who love to read but can't afford buying every book they want to read!

Corydon Publications has launched a full-library subscription, aimed squarely at readers who consume technical books faster than buying them one at a time can sustain.

A single subscription unlocks every Corydon title — study guides, cheat sheets and each new release the day it ships — along with the CertLabz reader and its browser labs. Billed yearly, it works out at two months free compared with paying monthly.

What is included

• Unlimited reading across the entire Corydon catalogue
• Every cheat sheet, certification and general reference alike
• New releases added on publication day at no extra cost
• CertLabz reader: highlights, notes, flashcards, offline reading and browser labs
• A 5-day free trial, with no card charged on day one

“Cancel the per-book math. If you are reading three or four technical books a year, the subscription pays for itself before the second one.”

— Corydon Publications

Readers who prefer to own individual titles can still buy print and ebooks in the Corydon store. Subscriptions can be cancelled at any time.

The per-book problem

Technical books are expensive, they date quickly, and the people who benefit most from them tend to be the people least able to buy them in quantity. A career-changer working through a certification path, a student on a stipend, a self-taught engineer in a country where a single imported paperback costs a meaningful slice of a month’s income — all of them face the same arithmetic, and the arithmetic usually wins.

The result is that readers ration themselves. They buy one book instead of three, choose the safest title rather than the most useful one, and skip the adjacent material that would have made the whole subject click. That is a bad outcome for the reader, and it is a bad outcome for a publisher whose entire purpose is to be read.

What the subscription includes

One subscription unlocks the entire Corydon catalogue: every study guide, every cheat sheet — certification and general reference alike — and each new release on the day it publishes, at no additional cost. It includes the CertLabz reader with highlights, annotations, a notes workspace, cross-book search, offline reading, auto-generated flashcards, and the browser-based labs that let code samples run inline.

Reading position, highlights, notes and bookmarks sync in real time across web, iOS and Android, so the book follows the reader rather than the device. Billed yearly, the subscription works out at two months free compared with paying month to month, and it can be cancelled at any time.

Try before you pay

New readers start with a 5-day free trial. No card is charged on day one, and the trial gives full access rather than a sampler — the whole catalogue, the reader and the labs. The intent is that a prospective subscriber can answer the only question that matters, which is whether they will actually use it, before any money changes hands.

Buying individual books has not gone away

Readers who prefer to own their books are unaffected. Print and ebook editions remain available individually in the Corydon store, bundles continue to carry their instant discounts, and nothing has moved behind a paywall that was not already paid for. The subscription is an additional route for people who read widely and quickly, not a replacement for owning the titles that matter to you.

Who this is built for

The subscription was designed around a specific reader: someone who goes through technical books quickly, across more than one subject, and for whom buying each title individually is the binding constraint on how much they learn. Career-changers working a certification path, students, self-taught engineers, and anyone in a country where an imported technical paperback represents a meaningful share of a month’s income.

For a reader buying one or two books a year, owning them outright remains the better deal and nothing about that has changed. The subscription is aimed at the reader who currently rations themselves — who buys the safest title instead of the most useful one, and skips the adjacent book that would have made the whole subject click.

What "everything" actually means

Every study guide, every certification cheat sheet, every general reference sheet, and each new title on the day it publishes. There is no premium tier holding back the good material, no per-title unlock, and no window during which a new release is excluded. If it is in the Corydon catalogue, it is in the subscription.

The CertLabz reader comes with it: five-colour highlights, inline annotations anchored to passages, a notes workspace with backlinks to chapters, cross-book full-text search, offline downloads, auto-generated flashcards with spaced repetition, and browser-based labs that run code samples inline. Position, highlights and notes sync in real time across web, iOS and Android.

Pricing and the trial

Billed yearly, the subscription works out at two months free against paying month to month, and it can be cancelled at any time without a retention call. New readers start with a 5-day free trial that grants the full catalogue rather than a sampler, and no card is charged on day one — the intent is that a prospective subscriber can answer the only question that matters, which is whether they will genuinely use it, before any money moves.