Like Robert Lowell, Moore revised many of her early poems in later life. Most of these revised works appeared in the "Complete Poems" of 1967. Facsimile editions of the theretofore out-of-print 1924 "Observations" became available in 2002. Since that time, there has been no critical consensus about which versions are authoritative. As Moore wrote, as a one-line epigraph to "Complete Poems", which offered her well-known work "Poetry" cut down from twenty-nine lines to three: "Omissions are not accidents." In a foreword to "A Marianne Moore Reader" in 1961, Moore said her favorite poem was the Book of Job.