 Petrarch's concern for rearrangements in and alterations to his sonnet sequence suggests that he treated his poems like works of art, in which there is always room for improvement.This idea can also be applied to Shakespeare's ideals, considering his sonnets 138 and 144 first appeared in 1599 in "The Passionate Pilgrim", and then appeared “much revised and strengthened” in the 1609 publication of "The Sonnets".There is a triple focus to all sonnet sequences that was originally put forth by the Italian model