I agree. "Please Please Me" through "Beatles For Sale" feels like the certain earlier era. I tend to put "Help" at the end of the early albums & say it's my fave earlier one (from those early ones I dig them in reverse order- though "Beatles For Sale" & "A Hard Day's Night" are very close)...but... a good case could be made for "Help" being the first of the later era. I think it, more so than "Rubber Soul", is the primary transitional album. Certainly "Rubber Soul" & onward to the finish constitutes the later era- of which I could never choose a favorite...love them all & see that as the greatest run of albums ever.