You can start by completely studying Mark Bronkalla's website: www.bronkalla.com
Mark has built a Glen-L Riv and has done a superb job documenting his build for others to learn.
A number of years ago, I bought a copy of Reuel B Parker's book: "The New Cold-Molded Boatbuilding From Lofting to Launching" The cold molding process is not all that complicated. There is only so much you can say about it and this book says it all. I highly recommend it. I had read it long before I ever saw Mark Bronkalla's site but found both to be virtually in perfect agreement.
BTW! The term "cold molded" comes from the fact that in the old days, boat builders used a form of heated glue to build laminated hulls. Nowadays, the glue isn't heated so it's "cold."