You can read how to sew stiff felt in quiet books when you sew the felt on the prepared pages, when you sew removable parts and when you sew small felt pieces.
How to Cut Felt – Benzie Design
How To Sew Stiff Felt In Quiet Books
Blog Biniboo Quiet Books
Make It: Quiet Book (including how to bind it)
45 Free Quiet Book Templates & Pages - The Yellow Birdhouse
Engage Your Little One with the Big Buckles Quiet Book Pattern
DIY No-Sew Quiet Book — Crafted Together
How To Sew Quiet Book Pages
How to stiffen felt for quiet book - this is so quick and easy
Free Quiet Book Pattern - Sew Much Ado