diff --git a/jlox/lox/src/main/java/xyz/ctsk/lox/Interpreter.java b/jlox/lox/src/main/java/xyz/ctsk/lox/Interpreter.java
index c38c3e7..86b66ad 100644
--- a/jlox/lox/src/main/java/xyz/ctsk/lox/Interpreter.java
+++ b/jlox/lox/src/main/java/xyz/ctsk/lox/Interpreter.java
@@ -338,6 +338,6 @@ public class Interpreter implements Expr.Visitor<Object>, Stmt.Visitor<Void> {
 
     private void checkNumberOperands(Token operator, Object left, Object right) {
         if (left instanceof Double && right instanceof Double) return;
-        throw new RuntimeError(operator, "Operands must be numbers");
+        throw new RuntimeError(operator, "Operands must be numbers.");
     }
 }
diff --git a/jlox/lox/src/main/java/xyz/ctsk/lox/Lox.java b/jlox/lox/src/main/java/xyz/ctsk/lox/Lox.java
index 2410ca9..7cc897f 100644
--- a/jlox/lox/src/main/java/xyz/ctsk/lox/Lox.java
+++ b/jlox/lox/src/main/java/xyz/ctsk/lox/Lox.java
@@ -16,7 +16,7 @@ public class Lox {
     private static boolean hadRuntimeError = false;
 
     private static void report(int line, String where, String message) {
-         System.err.printf("[line %d] Error %s: %s%n", line, where, message);
+         System.err.printf("[line %d] Error%s: %s%n", line, where, message);
          hadError = true;
     }
 
diff --git a/jlox/lox/src/main/java/xyz/ctsk/lox/LoxFunction.java b/jlox/lox/src/main/java/xyz/ctsk/lox/LoxFunction.java
index 11f92f3..77cf0cf 100644
--- a/jlox/lox/src/main/java/xyz/ctsk/lox/LoxFunction.java
+++ b/jlox/lox/src/main/java/xyz/ctsk/lox/LoxFunction.java
@@ -46,6 +46,6 @@ public class LoxFunction implements LoxCallable {
 
     @Override
     public String toString() {
-        return "<fn " + declaration.name().lexeme() + " >";
+        return "<fn " + declaration.name().lexeme() + ">";
     }
 }
diff --git a/jlox/lox/src/main/java/xyz/ctsk/lox/LoxInstance.java b/jlox/lox/src/main/java/xyz/ctsk/lox/LoxInstance.java
index 286ea46..a2d9831 100644
--- a/jlox/lox/src/main/java/xyz/ctsk/lox/LoxInstance.java
+++ b/jlox/lox/src/main/java/xyz/ctsk/lox/LoxInstance.java
@@ -28,6 +28,6 @@ public class LoxInstance {
 
     @Override
     public String toString() {
-        return "<" + clazz.name + " instance>";
+        return clazz.name + " instance";
     }
 }
diff --git a/jlox/lox/src/main/java/xyz/ctsk/lox/Parser.java b/jlox/lox/src/main/java/xyz/ctsk/lox/Parser.java
index 2d7f422..db5dbb8 100644
--- a/jlox/lox/src/main/java/xyz/ctsk/lox/Parser.java
+++ b/jlox/lox/src/main/java/xyz/ctsk/lox/Parser.java
@@ -121,7 +121,7 @@ public class Parser {
                 params.add(consume(IDENTIFIER, "Expect parameter name."));
             } while (match(COMMA));
         }
-        consume(RIGHT_PAREN, "Expect ')' after parameters");
+        consume(RIGHT_PAREN, "Expect ')' after parameters.");
 
         consume(LEFT_BRACE, "Expect '{' before %s body.".formatted(kind.toString().toLowerCase()));
         List<Stmt> body = blockStatement();
@@ -382,7 +382,7 @@ public class Parser {
             } while (match(COMMA));
         }
 
-        Token paren = consume(RIGHT_PAREN, "Expect ')' after arguments");
+        Token paren = consume(RIGHT_PAREN, "Expect ')' after arguments.");
         return new Expr.Call(callee, paren, arguments);
     }
 
@@ -397,7 +397,7 @@ public class Parser {
 
         if (match(SUPER)) {
             Token keyword = previous();
-            consume(DOT, "Expect ',' after 'super'.");
+            consume(DOT, "Expect '.' after 'super'.");
             Token method = consume(IDENTIFIER, "Expect superclass method name.");
             return new Expr.Super(keyword, method);
         }
diff --git a/jlox/lox/src/main/java/xyz/ctsk/lox/Resolver.java b/jlox/lox/src/main/java/xyz/ctsk/lox/Resolver.java
index b6f2a7d..97f0374 100644
--- a/jlox/lox/src/main/java/xyz/ctsk/lox/Resolver.java
+++ b/jlox/lox/src/main/java/xyz/ctsk/lox/Resolver.java
@@ -155,7 +155,7 @@ public class Resolver implements Expr.Visitor<Void>, Stmt.Visitor<Void> {
     @Override
     public Void visitReturnStmt(Stmt.Return stmt) {
         if (currentFunction == FunctionType.NONE) {
-            Lox.error(stmt.keyword(), "Can't return fom top-level code.");
+            Lox.error(stmt.keyword(), "Can't return from top-level code.");
         }
 
         if (stmt.value() != null) {
@@ -242,7 +242,7 @@ public class Resolver implements Expr.Visitor<Void>, Stmt.Visitor<Void> {
         if (currentClass == ClassType.NONE) {
             Lox.error(expr.keyword(), "Can't use 'super' outside of a class.");
         } else if (currentClass != ClassType.SUBCLASS) {
-            Lox.error(expr.keyword(), "Can't use 'super' in a class with no subclass.");
+            Lox.error(expr.keyword(), "Can't use 'super' in a class with no superclass.");
         }
         resolveLocal(expr, expr.keyword());
         return null;