Browser Infrastructure Browser
Versatile Sparks

Access Your Library

Download your books and source code, or recover a lost purchase link from Gumroad.

Download your books

Purchases are delivered by Gumroad. To download your files or recover a lost link:

  1. Go to gumroad.com/library and sign in with the email you used at purchase.
  2. Open the product to re-download the latest PDF, EPUB, and source.
  3. If you no longer have the email, use gumroad.com/recover to resend your library link.

Direct product pages

Need help?

If Gumroad's self-serve recovery does not work, email yasaka.hanini@protonmail.com with the email you used at purchase and we will resend your access link manually.