This is a great read, giving a thoughtful overview of current thinking on type. It does require some previous knowledge, or should I say familiarity, with Myers-Briggs, to understand it. Bayne gives well-reasoned consideration to the debate on the use of type in different applications, but always with a pro-type flavour.
You might be irritated as I was by his habit of listing what he is going to say, saying it, then summarizing it again. If you are, it's probably an indication of your own type !
The use of tables throughout is well judged to break up the density of the text and I found them very helpful as references.
I tended to read a page or so then break off in an extended thinking/reverie about the issues raised. It's rare to read an academic's text which causes you to do that.