After reading several reviews, I found a useful MathCAD book for reference. The title is "Engineering with MathCAD" by Bent Maxfield (published in 2006). Although it does not include Pro-E Integration, it helps to develop basic MathCAD skills with clear explanations & suggested tips. This book also has several examples which are very useful, and is easier to read than a typical technical book.
At a future time, I may decide to take a PTC training class. However, I prefer to be prepared beforehand so I know what questions to ask during a training class. PTC web-Based training is another option:
. You will receive the same training manuals via PTC University for Web-Based Training, Virtual Classroom, or Live Classroom Delivery. The eLearning subscriptions are all accessed via the web. There are over 14 Mathcad courses available via the Mathcad eLearning subscription.