But, when I'm engaged in research, I much prefer having a hard-copy, old-fashioned, traditional book to read.
My current favourite is 'State Of The Nation' by Michael Billington. I've been reading it voraciously since I bought it, and scribbling frantic notes in the margins of every page. I'm also particularly grateful to the blank pages at the back of the book, which I am beginning to fill with longer notes that wouldn't have fit down the edges of the writing!
It's really helping me crystallise my thinking on how Theatre responds to Crisis; I can tell it's going to be one of my most referenced texts going forward!