Book: #60
Title: "Mary-Anne's Makeover"

This book includes a subplot where the characters are obsessed with Back to the Future and want to build a time machine. Many references to the films and the characters.

The girls take a trip to Universal Studios in Hollywood and BTTF is mentioned.

One of the girls rents two movies - one of which is BTTF.

 Johnny and his friends find a ‘Tesco’ shopping trolley, belonging to Mrs. Tachyon and discover it can transport them through time. Wobbler complains that it has no digital readouts and Bigmac tells him that "You only get digital time machine clocks in America", a probable reference to the DeLorean’s digital time circuit displays.

BTTF is more specifically mentioned when the teenagers are using the time machine to escape from a mysterious black limousine and Kirsty asks Johnny. "Did you see that film where the car traveled in time when it went at 88 miles per hour?"

 Book: #1
Title: "No Time Like the Present"

There are several references to BTTF in this book by Future Girl, aka Kristen Sheley

• Sam Foster's address, 1026 Elmdale Drive, takes some decoding. 1026 or October 26 is the date Marty first went back in time. And Elmdale was an alternate name for the town Marty came from in an early draft of BTTF's script
• Sam's dog is named after Doc Brown
• Meg's last name - Clayton - is an homage to Doc's love interest Clara Clayton from Part III
• Other names in the book (first name of Sam's parents, surname of a doctor in 1850) are deliberate nods to people involved in the BTTF trilogy
• The microchip that Sam needs to fix the time machine has a serial number - BTF1105Y55 - a reference to the date Doc Brown discovered the flux capacitor, November 5, 1955
• The name of the series, "Partners in Time," is partly an homage to Doc's inscription on the photograph he gives Marty at the end of Part III. But as Kristen says, "It also just clicked really well with the whole story."
• The cover illustrator also threw in a BTTF reference (unbeknownst to Kristen!), if you turn the cover sideways, the symbols on the face of Sam's time machine form a vertical DMC-style logo, a nod to BTTF's DeLorean!

Kristen Sheley has said: "I may continue [to add BTTF references] in future stories -- names, dates, and numbers in my stories usually have their own little stories behind them."

Note: Check out everything Kristen Sheley at her website www.kristensheley.com!

 This novel, about parallel worlds, references BTTF in two ways - one very overt and one very obliquely. When the main character, Max, meets the scientist who has created a gate between worlds, Max tells the scientist he isn't what he expected. The scientist responds: "[Were you expecting] someone much older? Or a clone of Christopher Lloyd's character from the Back to the Future movies? Somebody with wild eyes, frizzing hair and a colorfully-stained lab coat?"

The second reference is to the various changes in U.S. President in different worlds. Max tells a woman from another universe the most recent Presidents - Bill Clinton, George Bush and Ronald Reagan. To which she replies: "Ronald Reagan? The actor?"

 David Russell meets Dr Koopman, a genius who has just finished building a time machine, in October 1985. He persuades the scientist to transport him back to November 22, 1963 to prevent President Kennedy’s assassination, in the hope that as a side-affect, his elder brother will not be killed in the Vietnam war. David fails to save the President and on November 24, 1963 pays a visit to the newly appointed President Johnson along with his girlfriend, Laura and the 1963 version of Dr. Koopman.

They show the President a film about the Vietnam war to illustrate that they are from the future. During the subsequent conversation David tells President Johnson that Ronald Reagan will be President of the United States in 1985. "Ronald Reagan? The actor?" the President asks in disbelief.

 The author makes reference to Back to the Future, Quantum Leap and many other popular films and television shows, which has time travel as their theme. The writer uses Back to the Future in particular to illustrate alternate realities and the paradoxes which can result from changing the past. The book includes a section titled "Back from the Future" which is obviously a play-on-words.

Also featured is a photograph of the DeLorean time machine with a poster of Back to the Future as a backdrop. The caption underneath the picture reads:

"The idea of time travel has captured our imagination. The movie trilogy Back to the Future was a huge international success and suggested that an inventor could build a time machine into a DeLorean car."