I quit about 100 pages in. As someone who previously battled depression for many, many years...when I feel this book is just too depressing to get through. There's no hope or encouragement to hold onto - nothing to inspire you through the darkness. If I had read this during my depression, I think it would have simply reinforced my feeling is emptiness. I appreciate that it's helpful to know you're not alone, but really you want to hear there are others who have been through it and, crucially, made it out the other side. That was missing from the first quarter of the book, and I'm not inclined to look further. It was also rather dull and hard to get through, simply due to the writing styles - and focused on a certain style of writer, such that I have never heard of 90% of them. There was definite bias there. I guess no one wanted to read about the mental states of horror, sci-fi or fantasy writers....