The process on Gumroad remains the same: you will find a link to Gumroad in your initial subscription confirmation email or recurring receipt--click the link to begin.
Select “Library” in Gumroad’s navigation.
Click on the SuperSummary icon that appears on the library page.
Next, an overlay will appear. Click on “View Product” to access SuperSummary’s study guide index.
When you access the library, you will find a long list of titles that you can either read online or download. To find a specific study guide title, simply keyword search for the title of the book. If you have a PC, use CTRL+F to open a search box. Type in the title of the book (or a keyword from the title) and hit Enter or use the scrolling arrows that appear in your browser. The screen should then scroll to the title you are looking for. If you have a Mac, use Command+F to open the search box, and then proceed as described above.