Since its publication in1942, C.S. Lewis's A preface to paradise lost has remained and continues to remain an indispensable introductory book for the study of Paradise Lost. Very briefly, but with remarkable clarity and precision, Lewis touches on all the important aspects of Paradise Lost: form and technique, structure and texture, theological disputes and characterization, etc. Lewis believes that a poem is a public activity through which the poet intends to move his readers. It is, therefore, extremely important to know the intention of the poet, to know what the poem is, what it was intended to do and how it is meant to be used. Accordingly, Lewis tries to identify the originally intended meaning of the poem in order to help the reader to have an access to Milton's intentions. In the process. the Elizabethan world order, the contemporary critical opinions on Milton's style, diction and characterizations- particularly Satan, Eve, the angels and Satan's followers-. are all brought to bear on his discussions in the preface.