diff --git a/src/colors.h b/src/colors.h
new file mode 100644
index 0000000..128a9ed
--- /dev/null
+++ b/src/colors.h
@@ -0,0 +1,11 @@
+#ifndef __COLORS_H
+#define __COLORS_H
+
+#define COLOR_WHITE "\033[0m"
+#define COLOR_BLUE "\033[94m"
+#define COLOR_CYAN "\033[96m"
+#define COLOR_GREEN "\033[92m"
+#define COLOR_YELLOW "\033[93m"
+#define COLOR_RED "\033[91m"
+
+#endif
diff --git a/src/lexer.c b/src/lexer.c
index 168e6ca..59e7c68 100644
--- a/src/lexer.c
+++ b/src/lexer.c
@@ -316,8 +316,6 @@ lexer_get_tokens (struct lexer *l)
 void
 lexer_print (struct lexer *l)
 {
-	puts ("Lexer:");
-
 	for (unsigned int i = 0; i < l->tokens.length; i++)
 		{
 			struct token *t = l->tokens.elements[i];
diff --git a/src/main.c b/src/main.c
index 46541fd..cd18b96 100644
--- a/src/main.c
+++ b/src/main.c
@@ -6,6 +6,8 @@
 #include "lexer.h"
 #include "parser.h"
 
+#include "colors.h"
+
 int
 main (int argc, char **argv)
 {
@@ -19,11 +21,24 @@ main (int argc, char **argv)
 	if (!buffer_read (argv[1], &code))
 		return EXIT_FAILURE;
 
+	puts (COLOR_GREEN "\n********************************" COLOR_WHITE);
+	puts ("Source:");
+	puts (COLOR_GREEN "********************************\n" COLOR_WHITE);
+	puts (buffer_get (&code));
+
+	puts (COLOR_GREEN "\n********************************" COLOR_WHITE);
+	puts ("Tokens:");
+	puts (COLOR_GREEN "********************************\n" COLOR_WHITE);
+
 	struct lexer lexer = lexer_create ();
 	lexer_set_source (&code, &lexer);
 	lexer_lex (&lexer);
 	lexer_print (&lexer);
 
+	puts (COLOR_GREEN "\n********************************" COLOR_WHITE);
+	puts ("AST:");
+	puts (COLOR_GREEN "********************************\n" COLOR_WHITE);
+
 	struct parser parser = parser_create (lexer_get_tokens (&lexer));
 	parser_parse (&parser);
 	parser_print (&parser);
diff --git a/src/parser.c b/src/parser.c
index 6bacaa7..334fe6d 100644
--- a/src/parser.c
+++ b/src/parser.c
@@ -175,8 +175,11 @@ parser_parse (struct parser *p)
 }
 
 void
-expr_print (struct expression *expr)
+expr_print (struct expression *expr, unsigned int i)
 {
+	for (unsigned int j = 0; j < i; j++)
+		printf ("\t");
+
 	switch (expr->type)
 		{
 		case EXPR_INT:
@@ -186,20 +189,20 @@ expr_print (struct expression *expr)
 			printf ("Float[%f]", expr->floating);
 			break;
 		case EXPR_BINOP:
-			printf ("BinOp('%s', ", buffer_get (&expr->binop.op->lexeme));
-			expr_print (expr->binop.left);
-			printf (", ");
-			expr_print (expr->binop.right);
+			printf ("BinOp('%s',\n", buffer_get (&expr->binop.op->lexeme));
+			expr_print (expr->binop.left, i + 1);
+			printf (",\n");
+			expr_print (expr->binop.right, i + 1);
 			printf (")");
 			break;
 		case EXPR_UNOP:
-			printf ("UnOp('%s', ", buffer_get (&expr->unop.op->lexeme));
-			expr_print (expr->unop.operand);
+			printf ("UnOp('%s',\n", buffer_get (&expr->unop.op->lexeme));
+			expr_print (expr->unop.operand, i + 1);
 			printf (")");
 			break;
 		case EXPR_GROUP:
-			printf ("Grouping(");
-			expr_print (expr->grouping.value);
+			printf ("Grouping(\n");
+			expr_print (expr->grouping.value, i + 1);
 			printf (")");
 			break;
 		default:
@@ -211,11 +214,10 @@ expr_print (struct expression *expr)
 void
 parser_print (struct parser *p)
 {
-	puts ("Parsed Ast:");
 	for (unsigned int i = 0; i < vector_len (&p->ast); i++)
 		{
 			struct expression *expr = (struct expression *)vector_at (i, &p->ast);
-			expr_print (expr);
+			expr_print (expr, 0);
 			printf ("\n");
 		}
 }