Punctuation the marks hierarchically, in terms of weight". Cecil Hartley's poem identifies their relative values: <poem style=margin:4em;> The stop point out, with truth, the time of pause A sentence doth require at ev'ry clause. At ev'ry comma, stop while "one" you count; At semicolon, "two" is the amount; A colon doth require the time of "three"; The period "four", as learned men agree. </poem> The use of punctuation was not standardised until after the invention of printing. According to the 1885 edition of "The American Printer", the importance of punctuation was noted in various sayings by children such as: <poem style=margin:4em;>
What Work Is in Detroit. The cadence of many of the poems in the collection are simple free verse. The rhythm and dictation of much of the collection is normal and easily accessible. Though "What Work Is" takes on many sophisticated subjects such as death, love, loss, and struggle, the collection maintains an easy-to-access feeling. Levine's work in this collection is not to obscure or make grandiose, but instead to reveal and show plainly matters that are important. Levine's structures and word choices reflect this mood of his poetry as he rarely uses complicated punctuation or rhythms. Instead of using highly symbolic words