appeared in his first book Poems (1928), a pamphlet hand-printed by Stephen Spender. In 1928, he wrote his first dramatic work, Paid on Both Sides, subtitled "A Charade", which combined style and content from the Icelandic sagas with jokes from English school life. This mixture of tragedy and farce, with a dream play-within-a-play, introduced the mixed styles and content of much of his later work. This drama and thirty short poems appeared in his first published book Poems (1930, 2nd edition with seven poems replaced, 1933); the poems in the book were mostly lyrical and gnomic meditations on hoped-for or unconsummated love and on themes of personal, social, and seasonal renewal; among these poems were "It was Easter as I walked," "Doom is dark," "Sir, no man's enemy," and "This lunar beauty." A recurrent theme in these early poems is the effect of "family ghosts", Auden's term for the powerful, unseen psychological effects of preceding generations on any individual life (and the title of a poem). A parallel theme, present throughout his work, is the contrast between biological evolution (unchosen and involuntary) and the psychological evolution of cultures and individuals (voluntary and deliberate even in its subconscious aspects). 1931–1935 Auden's next large-scale work was The Orators: An English Study (1932; revised editions, 1934, 1966), in verse and prose, largely about hero-worship in personal and political life. In his shorter poems, his style became more open and accessible, and the exuberant "Six Odes" in The Orators reflect his new interest in Robert Burns. During the next few years, many of his poems took their form and style from traditional ballads and popular songs, and also from expansive classical forms like the Odes of Horace, which he seems to have discovered through the German poet Hölderlin. Around this time his main influences were Dante, William Langland, and Alexander Pope. During these years, much of his work expressed left-wing views, and he became widely known as a political poet although he was privately more ambivalent about revolutionary politics than many reviewers recognised, and Mendelson argues that he expounded political views partly out of a sense of moral duty and partly because it enhanced his reputation, and that he later regretted having done so. He generally wrote about revolutionary change in terms of a "change of heart", a transformation of a society from a closed-off psychology of fear to an open psychology of love.