The Ampersand Hotel's website sums up how they do things:
http://www.ampersandhotel.com/
We learnt that the concept behind the Ampersand hotel came out through the use of an ampersand, which obviously meant 'and', and how everything in the residence made use of an ampersand, or the word 'and'.
They describe their tea room experience as:
"BUBBLES & CREAM Enjoy Afternoon Tea with Champagne in The Drawing Rooms."
Having the ampersand in the middle of the two words to stick with the concept.
I felt this was a very good example of a concept and it expressed the definition to me, visually, very well.
I learnt that coca-cola was in fact a concept, and the use of the red bottle had become something so well known that the image of it was part of the concept.
Following on from concepts, I have found a design agency called 'i am associates' (http://www.i-amonline.com), the site specialises in 'Brand experience':
"We are 'i-am'. We create innovative and profitable customer experiences through our expertise in brand consultancy, interior design and employee engagement. We create customer experiences that build advocacy and business profitability."
Their website is very professional, and I find it very interesting to see the work they have completed for well known clients.