your character’s personalities

Hi! I was wondering how did you come up with your all your character’s personalities? Was it hard to describe their personalities when you were writing about them? I want to be a writer but I have difficulty describing things so how do you do it?

Well, it helped that I could develop their personalities over 28 books; I didn’t have to do it all in one book.  Bit by bit, I got to know them better, so little traits added up.  You get to know their personalities by what they said and the way they said it; by the way they reacted to things that happened to them.   I had more difficulties describing how they looked.  Lots of trouble with that.  I used to ask my family for photographic books of people when they wanted to know what I wanted for Christmas, and when I started a new character, I often leafed through these books looking for a special chin or eyebrows or cheekbones or something.  People have no idea what a writer goes through, do they?