Meditations is a series of personal writings by Marcus Aurelius, Roman Emperor from second century, recording his private notes to himself and ideas on Stoic philosophy. Marcus Aurelius wrote the Meditations as a source for his own guidance and self-improvement. The Meditations is divided into 12 books that chronicle different periods of Marcus' life. A central theme to Meditations is the importance of analyzing one's judgment of self and others and the development of a cosmic perspective. The style of writing that permeates the text is one that is simplified, straightforward, and perhaps reflecting Marcus' Stoic perspective on the text.