We've come a long way in the last couple of decades. When I was growing up, I had never heard of a transgender person who wasn't being touted as some kind of freak by tabloid TV. Now, we can fight that kind of ignorance with education. Resources abound, one has only to ask the internet. That said, here are a few to get you started. If you know people who are trans* and you want to talk them about their experiences, that's great! ... Just be gentle about it, and understand that not everyone wants to be an object of intrigue.
(Act Two starts at about 29:30, and lasts for about 17 minutes.)
Provides human resources and other employment professionals with best practices for transgender workplace inclusion.
A support guide for parents, families and friends of transgender and gender-non-conforming people put out by PFLAG.