An abecedarian is a poem in which the first letter of each line follows the alphabet, starting with A and ending with Z. Landays is a form of folk poetry from Afghanistan which is meant to be recited or sung aloud and is formed by complex couplets. Reader-Response theory, on the other hand, is a poststructuralist literary theory that gained prominence in the 1960s and emphasizes the readers response to a poem, rather than the author's poetic intentions. Scout readers who are fascinated by the myriad distinctions, definitions, and subtleties of the poetic form will learn these things and much, much more in the Poetry Foundation's Glossary of Poetic Terms, which contains within its ample coffers a veritable legion of historically fascinating and lyrically compelling words and phrases.