In 1994, when he was Chair of the Design Council, John Sorrell was asked what design was. He published several definitions in a book released in 1995 to celebrate the Design Council's 50th anniversary. Now, over 25 years later, he has asked 100 people the same question and has published the answers in this book.
This book is a limited edition for the 100 contributors, of which I was one. Pictured below are just some of the definitions of design, including mine. It's a tough question and the answers are very varied, some quite of the moment. (I nearly wrote modish there but I don't mean it in a negative way.)
You can buy the book here.