Aguide word may be found in the dictionary by means of its etymology spelling or sound

Spelling or sound (depending if it is a grammar dictionary or a phonetic one)

Explanation:

A guide word is any of the terms at the head of the page in a dictionary indicating the alphabetically first and last words on the page, it helps find concepts faster, because it allows the reader to know what words are in that page, it is based on the spelling, in a regular dictionary, or in it's sound in a phonetic dictionary.

the book's theme is the moral ambiguity of the iranian revolution, history of middle eastern relations and the process of growing up during war. it sheds light on the stereotypical views of middle eastern culture and religion.

the author explicitly portrays the issues of class disparities and racism continously throught the whole novel.

the relationship between parents and childrens, the abandonment of faith, modernity vs fundamentalism and class conflict are the 4 main panels that this novel englobes.

hope this , if you would like me to be more specific about a specific excerpt let me know : )