The top 10 nearest neighbors for C. S. Lewis are a tight cluster of Spiritual Leaders — nine of the ten share that subcategory — with scores spanning only from 0.97 down to 0.93, a narrow band that defines the flat shape.

Louie Giglio (0.97) and John Piper (0.97) sit at the top, followed closely by Beth Moore (0.97), Matt Chandler (0.96), and Desiring God (0.96). David Platt (0.95), Craig Groeschel (0.94), Lysa TerKeurst (0.94), Pastor Mark Driscoll (0.94), and Andy Stanley (0.93) round out the set. The one exception is Ed Stetzer (0.93), classified as an Author rather than a Spiritual Leader — the lone departure from an otherwise uniform subcategory sweep. C. S. Lewis itself is a Fact Quote and Lyric Account, meaning every neighbor in the top 10 belongs to a different subcategory; the audience shape is defined entirely by the Spiritual Leaders cluster, not by other quote accounts. A W Tozer, the one other Fact Quote and Lyric Account in the broader results, does not appear until further down the ranked list.

The flat shape here reflects a highly coherent audience: no single neighbor dominates, because the entire top 10 is drawn from the same tight community of evangelical Christian voices.