How I Take Notes on What I Read for a Trade Book

Now that I have finished writing the draft of my book on the afterlife – which I’m tentatively titling “Heaven, Hell, and the Invention of the Afterlife  (that will be the title until my publisher changes it!!) – I have received several questions from blog members about aspects of the writing itself.  One reader wanted to know how I keep track of all the things that I read in preparation for writing a book like this (or like anything else).  Here is how:

When I decide what the next book is go...