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I am using Creo Parametric 2.0 F000
Other than the help center, are there any other documents, such as PDFs, that show the basic operation and creation process?
There is the learning connector: PTC Creo Video Tutorials
Live classes at PTC University: https://www.ptc.com/en/ptc-university
YouTube
Student How to Model Anything PDFs: http://apps.ptc.com/schools/How_to_model_almost_anything.zip
Try Amazon.com for some books on Creo.
Creo 2 is about 8 years old, so not much available anymore.