In my earlier post I reviewed Charting using Syncfusion Essential Studio for Xamarin Forms. I also discovered that Syncfusion have put together Xamarin Forms Succinctly, which is part of the Syncfusion Succinctly series.
Written by Derek Jenson, the Xamarin Forms Succinctly ebook can be downloaded for free here. It provides a great introduction to Xamarin Forms and offers an excellent chapter on Xaml, Pages and Views which I feel is currently lacking in the Xamarin Forms documentation. My only criticism is that it seems to have been written pre 1.3 which introduced the Application class and ditched the GetMainPage method. That said most of the content is well worthy of a read. I certainly found it useful and learnt some things along the way.
Download Xamarin Forms Succinctly here.