(try in your browser): https://help.autodesk.com/view/POWERSHAPE/2020/ENU/
For quick practice, open PowerShape 2020, press to access the local help, and search for “Tutorial – Preparing a model for machining.” Print those pages to PDF, and you’ll have a custom tutorial in minutes. powershape 2020 tutorial pdf
Be cautious of websites offering a “free PowerShape 2020 tutorial PDF” that ask for credit card details or require downloading an executable file. Legitimate PDFs never come bundled with “download managers.” Stick to Autodesk’s official channels or known training companies. (try in your browser): https://help
PowerShape is now part of (formerly Delcam). Autodesk provides free official documentation: open PowerShape 2020
If you are looking for specific modeling techniques, various Scribd documents offer focused training modules: