It is a sad commentary on the various collections of the shorter works of C. S. Lewis that this, the best of them, can't warrant a fifth star.
Rather than list the works that this collection does contain, it is shorter to list those that it does not. First, it contains none of Lewis's poetry. Second, it is missing the following prose works which have been published in other Lewis collections (alternative titles separated with slashes):
MISSING WORKS FOUND IN OTHER COLLECTIONS
"A Note on Comus" (1)
"A Note on Jane Austen" (2)
"A Reply to Professor Haldane" (3), (4)
"Addison" (2)
"Bluspels and Flananspheres: A Semantic Nightmare" (2)
"Dante's Similes" (1)
"Dante's Statius" (1)
"De Audiend is Poetis (1)
"De Descrptione Temporum" (2), (5)
"Donne and Love Poetry in the Seventeenth Century" (2)
"Edmund Spenser, 1552-99" (1)
"Four-Letter Words" (2)
"Genius and Genius" (1)
"Hamlet: The Prince or the Poem" (2), (5)
"Hero and Leander" (2)
"Imagery in the Last Eleven Cantos of Dante's Comedy" (1)
"Imagination and Thought in the Middle Ages" (1)
"Is Progress Possible?" (6)
"Kipling's World" (2), (5)
"Metre" (2)
"Neoplatonism in the Poetry of Spenser" (1)
"On Reading the Faerie Queene" (1)
"Psycho Analysis and Literary Criticism" (2), (5)
"Rejoinder to Dr. Pittenger" (6), (7)
"Shelley, Dryden, and Mr. Eliot" (2)
"Sir Walter Scott" (2), (5)
"Spenser's Cruel Cupid" (1)
"Tasso" (1)
"The Alliterative Metre" (2)
"The Anthropological Approach" (2)
"The Fifteenth Century Heroic Line" (2)
"The Genesis of a Medieval Book" (1)
"The Literary Impact of the Authorized Version" (2), (5)
"The Morte D'Arthur" (1)
"The Vision of John Bunyan" (2)
"Variation in Shakespeare and Others" (2)
"What Chaucer Really Did to Il Filostrato" (2)
"William Morris" (2)
Notes:
(1) "Studies in Medieval and Renaissance Literature"
(2) "Selected Literary Essays"
(3) "Of Other Worlds: Essays and Stories"
(4) "On Stories, and Other Essays"
(5) "They Asked for a Paper"
(6) "God in the Dock - Essays on Theology and Ethics" / "Undeceptions - Essays on Theology and Ethics"
(7) "Timeless at Heart: Essays on Theology"
As can readily be seen, the editorial axe fell heavily on Lewis's literary writings. None of the works from "Studies in Medieval and Renaissance Literature" were included, and almost none of the works from "Selected Literary Essays" (it is especially regrettable that the latter were not included, as that collection has been out of print many years, almost all of the works in it are found nowhere else, and it is very difficult to find).
Oddly, a handful of other works that one might have expected to see included were left out: "Rejoinder to Dr. Pittenger", "Is Progress Possible?", and "A Reply to Professor Haldane". It is odd that they were left out, as every other work in collections in which they had previously published were included here.
A final thing missing that must be cited is that of an index, the lack of which is truly unfortunate.
Still, even given these painful shortcomings, this work must be recommended because it remains better than the alternatives. The following Lewis collections can be replaced by this one (omissions already noted; alternative titles separated with slashes):
"The Weight of Glory and Other Addresses" / "Transposition and Other Addresses"
"The World's Last Night and Other Essays"
"They Asked for a Paper"
"Screwtape Proposes a Toast and Other Pieces"
"Of Other Worlds: Essays and Stories"
"Christian Reflections"
"God in the Dock - Essays on Theology and Ethics" / "Undeceptions - Essays on Theology and Ethics"
"Fern-Seed and Elephants and Other Essays"
"The Dark Tower and Other Stories"
"On Stories, and Other Essays"
"The Grand Miracle, and Other Selected Essays on Theology and Ethics"
"Present Concerns"
"First and Second Things: Essays on Theology and Ethics"
"Timeless at Heart: Essays on Theology"
"Christian Reunion and Other Essays"
"Compelling Reason"
"The Seeing Eye and Other Selected Essays from Christian Reflections"