I want to say that this wont be an easy journey.
Mentalism needs your full attention and if not performed right you might not get the "reactions" you want.
Mentalism is a performance art that needs a lot of attention on the presentation side. If you are a: "Look, ill put the card here and voila it rises on the top. Now i take it...", type of performer you are going to be doing a lot of work.
Now, for the suggestion part.
Annemann's "Practical mental magic" is one of the starting points. Also looking into Corinda's 13 Steps might be a better plan. It's cheap and shows you the basics technique wise. Eg. what props are most common and sleights(i wouldnt call them that, but lets let leave it at that).
Furthermore reading Banachek and Max Maven, along side my total favourite Paul Brook "Alchemical Tools" will give some good routines along side(and Alchemical the most) the tools to perform the art the right way(psychological princibles in mind). Also there are tons of people who have crafted some awesome performance books but i don't want to share them here
, trade secrets.
Anyway, feel free to PM me with questions.
M.