Andrew Zhang

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an absolutely terrible book, DOES NOT explain anything whatsoever! Each chapter probably contains 2 lines of words that talks about the topic and then its all just questions, HOW ARE U suppose to answer them without the book even showing you an EXAMPLE!!! Plus it doesn't even give you answers to check and you have PURCHASE THEIR ANSWER BOOK SEPERATELY for another $20!!!! Absolutely disgusting, wont ever purchase this AGAIN!