diff --git a/ASCII/Isomorphism.hs b/ASCII/Isomorphism.hs
--- a/ASCII/Isomorphism.hs
+++ b/ASCII/Isomorphism.hs
@@ -17,7 +17,7 @@
     toCharList :: string -> [Char]
     mapChars :: (Char -> Char) -> string -> string
 
--- | 'Char' is trivially isomorphic to itself.
+-- | 'Char' is trivially isomorphic to itself. (This instance is uninteresting.)
 instance CharIso Char
   where
     toChar = id
diff --git a/ASCII/Lift.hs b/ASCII/Lift.hs
--- a/ASCII/Lift.hs
+++ b/ASCII/Lift.hs
@@ -9,6 +9,8 @@
 import qualified ASCII.Refinement as R
 import qualified ASCII.Superset as S
 
+import qualified Prelude
+
 {- $setup
 
 >>> import ASCII.Char (Char (..))
@@ -38,10 +40,10 @@
 
 instance Lift (ASCII superset) superset where lift = R.lift
 
--- | An ASCII 'Char' may be 'lift'ed into any larger character set (a 'CharSuperset').
+-- | An ASCII 'Char' may be 'lift'ed into any larger character set (a 'CharSuperset'); for example, 'lift' can convert an ASCII character into a value of the standard 'Prelude.Char' type in "Prelude".
 
 instance CharSuperset superset => Lift Char superset where lift = S.fromChar
 
--- | An ASCII 'Char' list may be 'lift'ed into a string of any larger character set (a 'StringSuperset').
+-- | An ASCII 'Char' list may be 'lift'ed into a string of any larger character set (a 'StringSuperset'); for example, 'lift' can convert a list of ASCII characters into a value of the standard 'Prelude.String' type in "Prelude".
 
 instance StringSuperset superset => Lift [Char] superset where lift = S.fromCharList
diff --git a/ASCII/Superset.hs b/ASCII/Superset.hs
--- a/ASCII/Superset.hs
+++ b/ASCII/Superset.hs
@@ -87,7 +87,7 @@
 
 ---  Instances  ---
 
--- | 'ASCII.Char' is trivially a superset of itself.
+-- | 'ASCII.Char' is trivially a superset of itself. (This instance is uninteresting.)
 
 instance CharSuperset ASCII.Char
   where
diff --git a/ascii-superset.cabal b/ascii-superset.cabal
--- a/ascii-superset.cabal
+++ b/ascii-superset.cabal
@@ -1,7 +1,7 @@
 cabal-version: 2.0
 
 name: ascii-superset
-version: 1.0.0.2
+version: 1.0.0.4
 synopsis: Representing ASCII with refined supersets
 category: Data, Text
 
@@ -34,7 +34,7 @@
     default-extensions: GeneralizedNewtypeDeriving
     default-extensions: DeriveDataTypeable
     default-extensions: DeriveGeneric
-    ghc-options: -Wall
+    ghc-options: -Wall -fno-warn-unused-imports
 
     build-depends: base       >= 4.11 && < 4.15
     build-depends: bytestring >= 0.10 && < 0.11
diff --git a/license.txt b/license.txt
--- a/license.txt
+++ b/license.txt
@@ -1,4 +1,4 @@
-Copyright 2020 Typeclass Consulting LLC
+Copyright 2021 Mission Valley Software LLC
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.