The link - https://help.evernote.com/hc/en-us/articles/208314748 is not clear about the following
#1 - Does the shared users needs to have evernote account as well?
#2 - Can we share the entire note book as public URL as well as individual URL who needs credentials or account. Basically two ways of sharing - forcing one to have evernote account . the other is sharing as a public URL which anyone can access