"Paperback Writer" was written by Paul as a letter from an aspiring writer to a publishing company begging them to publish his new book. Paul later remarked that he like the way the phrase "paperback writer" sounded and wanted to build a song around it, as he had been challenged by an aunt to write a song not about love. The track itself featured a more prominent bass track through a technique conceived by engineer Ken Townsend, the first BEATLES song with such a feature and in direct response to popular American R&B songs released around the same time.

Despite rumors that the song was about drugs (specifically, yellow pills or 'downers') "Yellow Submarine" was an enormously successful children's song written in bed by Paul as a simple singalong. The song was the basis for the wildly popular 1969 animated film of the same name.

Years of speculation lead to many theories as to where Paul came up with the name Eleanor Rigby, including one by Paul in which he theorises that it was influenced by Eleanor Bron, who costarred in "Help !". But amazingly, in the 1980s, a grave was found in the cemetary at St. Peter's Parish Church, literally yards from the very spot that Paul was introduced to John. The original lyric featured a subject named Miss Daisy Hawkins as well as a Father McCartney.

Much like it's A-side counterpart "Strawberry Fields Forever", "Penny Lane" is a song about nosalgia and childhood. Penny Lane is a street in Liverpool where John and Paul grew up, described in real life as "dull".

This John Lennon song was The BEATLES' contribution to a world-wide television link entitled "Our World". The band was to create a song which could be understood by all nationalities. The BEATLES' performance was filled with balloons, celebrities, and signs in four languages which all read "all you need is love". John's song was declared the anthem for the Summer of Love, as it perfectly captured the mood that all one needed in life was love.

"Hello, Goodbye" reportedly originates from a demonstration by Paul to Alistair Taylor (one of Brian Epstein's assistants) on how Paul went about writing songs. Paul asked Taylor to shout the opposite of whatever he sang as he played a chord on the piano. Weeks later, Paul brought the demo into the studio to record.

The exact opposite of what was expected from them after the incredible "Sgt. Pepper's Lonely Hearts Club Band" and "I Am The Walrus", The BEATLES released "Lady Madonna" as a classic rock n' roll track after releasing two albums full of studio tricks and lush overdubs. The tune is from a recording titled "Bad Penny Blues" by Humphrey Lyttelton and bootlegs from this era reflect the frequent rehearsal of that song during "Lady Madonna" sessions. In an interview with the magazine Musician in 1986, Paul said the song was a celebration of motherhood, and the idea came from a photo in an African magazine.

Written by Paul for John's son Julian after the breakup and subsequent divorce of John and Julains mother Cynthia, John's first wife. Paul has said that the words came to him in the car, while he was driving, going from "Hey Jules" to "Jude". Paul was displeased with the line 'The movement you need is on your shoulder', thinking it to sound like he was singing about his parrot, but John convinced him that it was probably the strongest line in the song. John later commented that it was written for him subconsciously by Paul, saying for John to go ahead and leave him for Yoko.

"Get Back" was the original title to the film and album which became "Let It Be". The whole idea of the album was for the band to 'get back' to their recording roots by playing live and without studio trickery, hence the title. Journalists repeatedly asked Paul if the song had racist meanings, but demo tapes show that the song was originally a satire of people who wanted to keep illegal immigrants out of Britian. Soon Paul had added a few characters and the satire was lost, but the single was enormously successful, selling 2 million copies.

"Something" was inspired by both George's wife Pattie Boyd and the James Taylor song "Something In The Way She Moves".

Originaly a campaign theme for Timothy Leary's 1969 bid for governor of California, "Come Together" was later recorded at Abbey Road for the "Abbey Road" LP. Lennon was later sued for plagiarism for using the phrase 'old flat top'; which was lifted from the Chuck Berry song "You Can't Catch Me". "Come Together" was issued with "Something" as the first single from "Abbey Road".