Angela Clayton: Making a Gothic Butterfly Crown (YouTube)
Not quite a tutorial, more a live action demo of the making process with a little info on the process. I do however have a tutorial for the project on my blog: https://doxiequeen1.wordpress.com/
https://www.youtube.com/watch?v=yslXZLAYXIQ
Here is a list of books, including some free eBooks, by David Bruce:
https://davidbruceblog.wordpress.com/david-bruce-books/
Check out the rest of https://davidbruceblog.wordpress.com/
davidbruceblog #1 