documents, command, apps, bookshare

Good evening. Is it better to use text edit or pages for writing documents on a Mac? If I use pages, should I write the document as a blank document or the notetaking option? I have a cousin that uses word on her Mac. is Word accessible with voiceOver? What is the command for the back button when you are in safari? Can I use some of the same apps I have on my iPhone on the Mac? Is there a way to download and read books from bookshare on a Mac? What format do I need to choose? I would like to download the books and read them at a later time. Thank you.