The book needs to have page turning features, links between pages, complex sub-sections and an icon on the home screen.
I do this quite easily!!!! BUT not using Apple software.
Is your client looking for a sales tool on iPads or a brochure/catalogue for customers to use on their computers?
I create .exe file with and without flip page and doing what you want.. only for PC / Windows.
These are usless on Macs unless the user is prepared to buy an app to use .exe files.
You do not mention if your client is on PC or Macs and the other issue is.. whatever they use... their sales contacts will (collectively) be using both OS and you need to cater for that.
I use two PC applications depending on what is wanted by the client. ( one is flip page 'tother is not)
My client will use a mix of Keynote presentations and product video wrapped in iBooks on iPads as a sales tool.
They have their products in a downloadable.exe format and also PDF- which is not interactive.
Although I am looking for an app that can do it better.
Fact is, there are applications that do what you and I want but none work on both OS - at least that I can find.
Take into consideration sales persons "on the road" are using laptops and iPads for presentations and more are adopting iPads.