The title says it all!

I have access to free skillport books from my job and I want to become a developer in the future, so I'm hoping some certs will help me get my foot in the door. However, I have absolutely zero SQL Server experience. I want to take 432, 433, and 448 since the positions at my job ask for SSAS,SSRS, and SSIS
Should I use step by step books to get the basics down and then use MS Press books, or should I jump straight into the MS Press books and start studying for the exams?