This IB Chemistry book may be your best bet for a comprehensive and effective review of the SL or HL course material. The book has friendly and understandable explanations of complex concepts, with 250 practice questions for the test, as well as a complete listing of all related terms and their explanation. Important equations are listed throughout each content chapter, covering what you need to know in order to excel in the SL or HL test. Questions with answers include an overview section, and an additional in-depth section if you need further clarification. The user-friendly format makes it one of the best IB Chemistry review book available. It provides a means for developing study plans that you can customize to fit your needs. It isn't too skimpy or too overwhelming with information. It also provides a great way for structuring your studying, which is helpful if you consider yourself somewhat less than a totally organized student.