The texts in Isaiah 40-66 are widely admired for their poetic brilliance. Situating Isaiah within its historic context, Katie Heffelfinger here explores its literary aspects through a lyrically informed approach that emphasizes key features of the poetry and explains how they create meaning. Her detailed analysis of the text's passages demonstrates how powerful poetic devices, such as paradox, allusion, juxtaposition, as well as word and sound play, are used to great effect via the divine speaking voice, as well as the personified figures of the Servant and Zion. Heffelfinger's commentary includes a glossary of poetic terminology that provides definitions of key terms in non-technical language. It features additional resources, notably, 'Closer Look' sections, which explore important issues in detail; as well as 'Bridging the Horizons' sections that connect Isaiah's poetry to contemporary issues, including migration, fear, and divided society.