Purchase
Where to buy
All guides are available as ebooks on the platforms below. Choose whichever you already use — the content is identical everywhere.
Amazon Kindle
Read on any Kindle device or the free Kindle app for iPhone, iPad, Mac, Android, and PC.
Browse guides →Apple Books
Read directly on iPhone, iPad, or Mac with the built-in Books app. No extra apps needed.
Browse guides →Google Play Books
Read on Android, iPhone, iPad, or any web browser. Syncs across all your devices.
Browse guides →Common questions
Which store should I choose?
Pick the one you already use. If you read on an iPhone or Mac, Apple Books is convenient. If you have a Kindle, use Amazon. If you prefer reading in a browser or on Android, Google Play is a great fit. Some titles may only be available on Amazon Kindle — check each guide's page for the full list of stores.
Are the guides available in print?
Selected titles are available as print-on-demand paperbacks on Amazon. Check each guide's page for availability.
Can I read a sample first?
Yes. Every major ebook platform lets you preview a free sample before buying. Look for the "Sample" or "Preview" button on the store page.
Do I get free updates?
On platforms that support it (Apple Books, Google Play), guide updates are delivered automatically. On Amazon, you may need to request the latest version through your Kindle library settings.