Hi: As Reeza explained, Ron Cody's book can be considered an extra reference for learning SAS. The questions for the Base Programmer exam will be taken from the topics that are contained in the Programming 1 course and the Programming 2 course. Since Programming 1 is free as self-paced e-learning, the type of in-depth explanation you are looking for about how SAS works and why it works the way it works is contained in Programming 1 (and in Programming 2). Ron's book is excellent, but studying it by itself may not completely prepare you for the Base SAS Certification exam. His book may not cover every topic that is in Programming 1 and Programming 2. cynthia
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