If we use Back button in website inner pages should we always use the text Back all the time or we should use the title of the last page. But title of last page can be longer than Back For example
for example if I'm at Home > About us > History.html
then the title of "Back button" on History.html page should be "Back" or "About Us"
If we go for page title which is "About us" in above example, sometimes the page title can be very long , it will create problem for other elements in header. in that case is it good to use like "Product and Services" to "product..."