The authors will be pleased to hear it.

What makes me so happy is that this is the first book on the subject in the West and that the authors are real Ivy fans dating back to the 1960s and 1970s repectively.

I was interested to see that Ralph Lauren rates a little mention.  He often gets short shrift on the forum.  I should be interested in hearing a bit about wearing the stuff from Brideshead, who I think might have been into it early on.  I thought it was excellent when I first laid eyes on it around 1980 - though it was my father who was wearing it, not me.  I've since inherited some of those USA-made polo shirts.  John Simons certainly used to sell it.  About £39 per shirt as I recall.  Jeff used to wear it in the shop.  Debrett's New York fashionista was onto the pony by 1988, but try telling guys, even now, that their shirts would be better without.  They simply won't believe you. 
It doesn't help that charity shops are often as rammed with non-USA offerings as they are with Ben Sherman.

not wanting to lower the tone, but you wonder whether CC will ignore that this book is being made now that he has a reference in the back...

My duffle coat may just be among my favorite items of clothing...bought from j simons, some obscure German brand it was.  Don't care too much for Gloverall to be honest, certainly not for their "monty" model.

yeah, when i was 8 or so we had a family who moved from ireland, dirt poor, etc etc. i remember some sicilian calling the kid my age paddington bear, and then getting his nose rearranged.

It's got a review in the Telegraph Magazine Men's Autumn Hotlist:

The Ivy Look (Frances Lincoln, £12.99) is a lovingly researched guide to the classic clothing worn by the Ivy League university fraternity in the 1960s, a look that a certain stylish breed of men have never grown out of. In their book, Londoners Graham Marsh and JP Gaul, enthusiasts of all things button-down and cool, dissect the key elements, from the width of the lapel to the shininess of the Bass Weejuns and the perfect tilt of the trilby, a jaunty version of which (they probably wouldn’t approve) M&S sells for £15.

http://www.telegraph.co.uk/fashion/7951799/The-mens-hotlist-for-autumn-2010.html