Interesting Book – How to Negotiate Effectively

I have been reading this book for quite a while. Boredom took over me in today’s flight trip and helped me complete the reading.
Overall, I rate this book as a good read. In order to make best out of this book, I need to read it again.
I got a few pointers, from this book, on asking right questions, how to be an effective consultant, and how to negotiate in a business scenario. Besides that I think this book will be more useful to those who are in purchasing, sales, and marketing.
Amazon link to this book is here.

What comes after primary, secondary, tertiary?

Here is the answer from Oxford dictionary:
The sequence continues with quaternary, quinary, senary, septenary, octonary, nonary, denary. Words also exist for `twelfth order’ (duodenary) and `twentieth order’ (vigenary).
For your additional curious questions, please refer to