Hello Richard, take a look around dude! The stuff your asking about is everywhere.  With all due respect, is this a trick question?

(You have 8 Evo and 10 Pro? Yes? Look at the user guides.) 

"Where can I get some study materials as mentioned on your web site? Also I'd like to know some example sites built with Website X5 - I have seen the impressivewebsite X5 Tees."

X5 home page top menu bar and at the bottom footer.  Also here in this forum at the right under Extra and Filters (If the filter window is not showing click on UPDATES and the filter window will show.) Start clicking on some buttons and mouse over (pointer changes) text or headings like Gallery & Support.  I doubt if anything is going to blow up or that you'll break the X5 website or this forum.  Choose the language you want, the topics and time frame and apply!  Also youtube and google "website X5" etc.

Go for it! Kind Regards. Donald