I find the suggestion of reading school handbooks to be odd. In OP’s case, the listed schools (in another thread) which accepted OP’s daughter are:
Andover, Deerfield, Hotchkiss, Loomis Scholar, NMH, Kent, Mercersburg, & George School.
I suspect that the handbook of George School might “read” the best. Should that have an impact on a decision which might rule out Andover or Deerfield Academy ? Or Hotchkiss or being a Loomis Scholar ? Kent ? Mercersburg ? NMH ? Of course not. It just means that one might hire the firm which wrote & assembled the handbook as one’s PR firm.