How to make a floating desk

A good friend of mine is beginning to do interior design (as a job, she’s always done it in her own home which is beautiful) and one of her new clients had a little nook perfect for a desk.  She asked me to make a little floating desk to fit there but the kicker was that I couldn’t get into the space until the time that  I could install it (due to other work being done and my schedule). She took really good measurements and gave good simple direction for what she was envisioning.  It turned out to be a very simple build, but to great effect. She was really happy with it, and I think it fit…