If you are happy with the KJV fine - but you need to be aware that it translates the Greek aion incorrectly as world and some other oddities too.
(Mat 24:3 KJV) And as he sat upon the mount of Olives, the disciples came unto him privately, saying, Tell us, when shall these things be? and what shall be the sign of thy coming, and of the end of the world?
NASB and most others:
Mat 24:3 NASB As He was sitting on the Mount of Olives, the disciples came to Him privately, saying, “Tell us, when will these things happen, and what will be the sign of Your coming, and of the end of the age?”
There is a vast difference between end of the world and end of the age.
If your mom has never read the KJV or rarely I would recommended the NASB or NIV, they get the message across.