The Plot Thickens is full of great ideas and exercises to continue to develop your story. As I read each chapter, Lukeman pointed me towards additional ideas and I couldn't wait to get started developing them.
I'm not a horror fan, so haven't read much by King at all. But this book is fantastic. He talks about the trials and tribulations of his writing life, and a little about the mechanics of writing. Funny, inspiring, and a great read.