"Spectra: A Book of Poetic Experiments" by Arthur Davison Ficke and Witter Bynner is a poetry collection published in 1916. Writing under pseudonyms, these accomplished American poets created an elaborate hoax to satirize the Imagism movement. They invented a fake poetic school called Spectrism, complete with a manifesto and opus-numbered poems. The work fooled readers and even their publisher initially, gaining acceptance as a legitimate movement for two years before the authors revealed the truth in 1918. (This is an automatically generated summary.)