Depends how rigorous this course is. Are there proofs or is it just setting up and solving problems? If its the latter, this extremely informal book is helpful for gaining intuition on the subject.
Thank you for your recommendation! I eventually decided to go with Schaum's Outline and this.
Hmm, judging by the lengthy review and a few less lengthy reviews, it's not the sort of book that I like. I like exposition with few examples, as opposed to this. However, the reviews did have the fortune to lead me to two searchable and me-approved books: this one and Schaum's. Thank you! Since it's Christmastime, there's little need to be modest, and I'll get both.