peruse (verb) - to read or examine in a thorough or careful way OR to read or skim casually [puh-rooz]
BREAKDOWN: PER- (thoroughly) + USE- (make use of)
perusal is the act or reading, examining, or studying thoroughly
“The first time I read an excellent work, it is to me just as if I gained a new friend; and when I read over a book I have perused before, it resembles the meeting of an old one.” —Sir James Goldsmith