Sonnet cycle
A sonnet cycle is a group of sonnets, arranged to address a particular person or theme, and designed to be read both as a collection of fully realized individual poems and as a single poetic work comprising all the individual sonnets.
A sonnet cycle may have any theme, but unrequited love is the most common. The arrangement of the sonnets generally reflects thematic concerns, with chronological arrangements (whether linear, like a progression, or cyclical, like the seasons) being the most common. A sonnet cycle may also have allegorical or argumentative structures which replace or complement chronology.