Understanding how a quitter will go through the Stages of Change before finally quitting

On an online quitting smoking support group I had suggested Allan Carr's book, "The Easy Way to Quit Smoking" to someone who needed motivation to quit. Someone else responded back with: 

VJ -- I read your book and Allen Carrs book... I liked both but nothing helped me quit .. but myself ... and I never thought I could do it .. but I did it ..   L.

I have had smokers tell me this before and