Pretty cool site. FYI the page turn animation is unstable if I grab it near the center of the page (it rapidly rocks between angled-down-from-top and angled-up-from-bottom).

hi, I'm Sonica, CTO and cofounder of Bubblin here.

Yes, the transition is shaky when the curl is near the horizontal axis. We'll fix or remove it on our next iteration of Bookiza.JS [1]

[1] https://bookiza.io

This site looks awesome! Thanks for sharing!