Jason Kelly's book should be served as a good starting guide for anyone who's serious about investing.

I use this daily. Love that it moisturizes and protects my skin from the sun. The best thing is that it absorbs quickly, never leaves my face oily, and have never had a breakout using this product. This moisturizer only takes about a minute to fully absorb. Once absorbed, I apply my foundation and the rest of my makeup. There has never been an issue with foundation streaks, dry spots, oily spots, etc. Another thing to point out is that I am outside in the pool a lot and while the rest of my body gets tan, or on some occasions sunburned, my face is protected. This spf truly works well and that's just with one application in the morning.