As I have said in my other thread "Best B2B sales book in 1 page- The challenger sale", that I like to make mind maps of actionable books, specially on sales.
Link to The Challenger Sale mind map here, https://bravado.co/war-room/posts/best-b2b-sales-book-in-one-page-the-challenger-sale.
So I also created a mind map on Never Split The Difference, which teaches a lot about negotiation and sometimes prospecting too.
ALSO PLEASE COMMENT YOUR FAVORITE BOOK ON COLD CALL PROSPECTING AND NEGOTIATION, I'LL ADD IT TO MY READING LIST.
Hope it helps.
IMPORTANT NOTE : Read it clockwise from top right to top left.