Although scholars point to similarities between Sirach and the book of Proverbs and sometimes characterize Ben Sira's relationship to biblical poetry as one of imitation (often unsuccessful imitation), this study considers the innovative and unique aspects of Sirach poetry, especially its use of parallelism, and demonstrates that Ben Sira does not rely exclusively on Proverbs or any other biblical book as a model. Innovations in Hebrew Poetry provides detailed readings and philological analysis for the nine poems in the Masada scroll, and general observations on many other Sirach and biblical poems complement the analysis.