i have a bachelors degree in environmental sciences, and i am preparing for the LEED GA, however the USGBC core concepts guide is a bit confusing, most of the references are hard to find online and the material is so vast i dnt know what to study and what not, kindly guide me as to what areas i need to focus my attention on for passing the exam and if i need to memorize all the percentages ,and numbers in the texT, also plz guide me if i need to detail study all the references in the guide
Green Prep 
i have a bachelors degree in environmental sciences, and i am preparing for the LEED GA, however the USGBC core concepts guide is a bit confusing, most of the references are hard to find online and the material is so vast i dnt know what to study and what not, kindly guide me as to what areas i need to focus my attention on for passing the exam and if i need to memorize all the percentages ,and numbers in the texT, also plz guide me if i need to detail study all the references in the guide
THANKS