What are these ‘overview prototypes’?

These iPad-sized prototypes show when individual events are triggered or have sliders with which you can tweak different properties and settings.

They make it easier to understand what, for example, ‘originX’ does because you can change it together with ‘rotation’ and see the result.

I bought an earlier edition of the ePub. How do I update?

The latest edition will be waiting in your Gumroad library.

Don’t have a Gumroad account? Create one with the email address you used to purchase the book. The book will be there.

You do have an account, but the book is not in your library? Send me your email address; I’ll resend the receipt so you can add it.

How do I get the ePub on my iPad, iPhone or iPod Touch?

To transfer the book: Connect your iDevice to your Mac, select the book in iTunes, and press ‘Sync’. The book’s read location will sync automatically between devices.

Can I read the eBook on a Windows or Linux computer?

It’s a standard ePub 3 file, so it’s perfectly readable. The layout might seem a bit different though, because I formatted it for Apple Books.