Working with Gilding Adhesive

Before starting on this post I did a quick search for "gilding adhesive" and was shocked by the wealth of misinformation available.  This is a good case for why it is important to know and trust your sources to make sure you are getting quality information.  No, using your fingers to apply gold leaf on a layer of Elmer's glue is not the best practice. Nor is using your fingers to smooth wrinkles in the applied leafing. Wow. Just. Wow.  If you too do a similar search you'll find that there are many choices available to you and a plethora of questionable processes.  This is by no means an exhaustive list of adhesives but it's generally what you need to know for decorative art applications.