Sparknotes 代替案 & 競合他社
SparkNotes are the most helpful study guides around to literature, math, science, and more. Find sample tests, essay help, and translations of Shakespeare.
代替品と競合他社 sparknotes.com コンテンツ、トラフィック、構造に関して
The cozy home of your favorite free study guides and the most helpful study tools around! Check out our new digs and get the help you need!
CliffsNotes is the original (and most widely imitated) study guide. CliffsNotes study guides are written by real teachers and professors, so no matter what you're studying, CliffsNotes can ease your homework headaches and help you score high on exams. Founded in 1958 by Clifton Keith Hillegass, CliffsNotes is the original company that produced study guides and book summaries ranging from Shakespeare to Algebra and the SAT!
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