Dickinson's poetry is quite often recognizable at a glance, and is unlike the work of any other poet. Her facility with ballad and hymn meter, her extensive use of dashes and unconventional capitalization in her manuscripts, and her idiosyncratic vocabulary and imagery combine to create a unique lyric style.

Over half of her poems were written during the years of the American Civil War. Many suggest that the Civil War gave some of the tense feeling in her poetry. Dickinson toyed briefly with the idea of having her poems published, even asking Thomas Wentworth Higginson, a literary critic, for advice. Higginson immediately realized the poet's talent, but when he tried to "improve" Dickinson's poems, adapting them to the more florid, romantic style popular at the time, Dickinson quickly lost interest in the project.

By her death (1886), only ten of Dickinson's poems (see: Franklin Edition of the Poems, 1998, App. 1) had been published. Seven of those ten were published in the Springfield Republican. Three posthumous collections in the 1890s established her as a powerful eccentric, but it wasn't until the twentieth century that she was appreciated as a poet. Dickinson's poetry was collected after her death by Higginson and Mabel Loomis Todd, with Todd initially collecting and organizing the material and Higginson editing. They edited the poems extensively in order to regularize the manuscripts' punctuation and capitalization to late nineteenth-century standards, occasionally rewording poems to reduce Dickinson's obliquity. A volume of Dickinson's Poems was published in Boston in 1890, and became quite popular; by the end of 1892 eleven editions had sold. Poems: Second Series was published in 1891 and ran to five editions by 1893; a third series was published in 1896. Two volumes of Dickinson's letters, heavily edited and selected by Todd (who falsified dates on some of them), were published in 1894. This wave of posthumous publications gave Dickinson's poetry its first real public exposure, and it found an immediate audience. Backed by Higginson and William Dean Howells with favorable notices and reviews, the poetry was popular from 1890 to 1892. Later in the decade, critical opinion became negative. Thomas Bailey Aldrich published an influential negative review anonymously in the January 1892 Atlantic Monthly:

"It is plain that Miss Dickinson possessed an extremely unconventional and grotesque fancy. She was deeply tinged by the mysticism of Blake, and strongly influenced by the mannerism of Emerson....But the incoherence and formlessness of her — versicles are fatal....An eccentric, dreamy, half-educated recluse in an out-of-the-way New England village (or anywhere else) cannot with impunity set at defiance the laws of gravitation and grammar." (in Buckingham 281-282)

"She was neither a professional poet nor an amateur; she was a private poet who wrote as indefatigably as some women cook or knit. Her gift for words and the cultural predicament of her time drove her to poetry instead of antimacassars....She came, as Mr. Tate says, at the right time for one kind of poetry: the poetry of sophisticated, eccentric vision. That is what makes her good — in a few poems and many passages representatively great. But...the bulk of her verse is not representative but mere fragmentary indicative notation. The pity of it is that the document her whole work makes shows nothing so much as that she had the themes, the insight, the observation, and the capacity for honesty, which had she only known how — or only known why — would have made the major instead of the minor fraction of her verse genuine poetry. But her dying society had no tradition by which to teach her the one lesson she did not know by instinct." (195)