Beatlemania: 1963-1965
Getting a moderately successful recording into the English charts and surmounting the charts of the Western world was a journey that began with a variety of steps and missteps. The first task, obviously, was to build on their success, by recording follow-up hits that both identified them as a marketable sound and allowed them to define the stylistic crest. At the same time, they needed to promote their records through touring and gaining as much media exposure as they could. All of this required Brian Epstein to keep the business side of the venture on an even keel. In the end, it all worked, although the financial and personal costs were more staggering than they could possibly have imagined. The popular hysteria dubbed "Beatlemania" did not arise over night, but it did manifest itself much faster than almost anyone thought it could.
 
Building a Reputation Promotion Marketing

Beatles in the Works Schedule Lennon and McCartney
  2-feb-12