Since you are only transitioning from light a/c to a small jet at present, I do agree "Big Jets" may be a bit ambitious at this stage in your career. What you really need is some reading applicable to the transition you are about to make.
The Turbine Pilot's Flight Manual by Greg Brown is a
MUST!
It it written for pilots in your position making that transition.
From the reviews: This book is the consumate soup of all of the most important things you need to know before you go into ground school at a regional or major airline. It was written by airline pilots who still remember how overwhelmed they were when they sat through their first aircraft systems ground school at their respective airlines. I consider it mandatory reading before you consider setting foot in a flight simulator or airline ground school."
-by MD-80 pilot and webmaster of the very popular US airline careers site
Jetcareers.com