Simple Present Perfect indica o actiune incheiata, iar Present Perfect Continuous arata ca actiunea nu s-a incheiat inca.
Ex:
I have done my homework. You can see all the exercises in my notebook.
I have been doing my homework. I'll finished it soon.
My mom has read the book. I can give it back to you
My mom has been reading this book. She needs around 1 hour to finish it.