diff --git a/build.zig b/build.zig
index bb3f4fa..af7ed4a 100644
--- a/build.zig
+++ b/build.zig
@@ -1,38 +1,38 @@
 const std = @import("std");
 
 pub fn build(b: *std.Build) void {
-    const target = b.standardTargetOptions(.{});
-    const optimize = b.standardOptimizeOption(.{});
+	const target = b.standardTargetOptions(.{});
+	const optimize = b.standardOptimizeOption(.{});
 
-    const root_module = b.createModule(.{
-        .target = target,
-        .optimize = optimize,
-        .link_libc = true, // TODO: no more libc
-    });
+	const root_module = b.createModule(.{
+		.target = target,
+		.optimize = optimize,
+		.link_libc = true, // TODO: no more libc
+	});
 
-    const c = b.addExecutable(.{
-        .name = "noom",
-        .root_module = root_module,
-    });
+	const c = b.addExecutable(.{
+		.name = "noom",
+		.root_module = root_module,
+	});
 
-    c.root_module.addCSourceFiles(.{
-        .files = &[_][]const u8{
-            "src/helper.c",
-            "src/lexer.c",
-            "src/parser.c",
-            "src/main.c",
-        }
-    });
+	c.root_module.addCSourceFiles(.{
+		.files = &[_][]const u8{
+			"src/helper.c",
+			"src/lexer.c",
+			"src/parser.c",
+			"src/main.c",
+		}
+	});
 
-    b.installArtifact(c);
+	b.installArtifact(c);
 
-    const run_cmd = b.addRunArtifact(c);
-    run_cmd.step.dependOn(b.getInstallStep());
+	const run_cmd = b.addRunArtifact(c);
+	run_cmd.step.dependOn(b.getInstallStep());
 
-    if (b.args) |args| {
-        run_cmd.addArgs(args);
-    }
+	if (b.args) |args| {
+		run_cmd.addArgs(args);
+	}
 
-    const run = b.step("run", "Build and run the project");
-    run.dependOn(&run_cmd.step);
+	const run = b.step("run", "Build and run the project");
+	run.dependOn(&run_cmd.step);
 }
diff --git a/src/lexer.c b/src/lexer.c
index 979e70f..2530ab7 100644
--- a/src/lexer.c
+++ b/src/lexer.c
@@ -106,6 +106,28 @@ int noomL_iskeyword(const char* s, noom_uint_t len) {
 	return 0;
 }
 
+const char *noomL_formatTokenType(noomL_TokenType token_type) {
+	switch (token_type) {
+		case NOOML_TOKEN_EOF:
+			return "EOF";
+		case NOOML_TOKEN_KEYWORD:
+			return "keyword";
+		case NOOML_TOKEN_WHITESPACE:
+			return "whitespace";
+		case NOOML_TOKEN_IDENTIFIER:
+			return "identifier";
+		case NOOML_TOKEN_STRING:
+			return "string";
+		case NOOML_TOKEN_SYMBOL:
+			return "symbol";
+		case NOOML_TOKEN_NUMBER:
+			return "number";
+		default:
+			return "unknown";
+	}
+
+}
+
 noomL_ErrorType noomL_lex(const char* s, noom_uint_t start, noomL_Token* token) {
 	const char* str = s + start;
 
diff --git a/src/lexer.h b/src/lexer.h
index 143be59..54872eb 100644
--- a/src/lexer.h
+++ b/src/lexer.h
@@ -32,5 +32,7 @@ int noomL_iswhitespace(char c);
 noom_uint_t noomL_getsymbol(const char* s);
 noom_uint_t noomL_getnumber(const char* s);
 
+const char *noomL_formatTokenType(noomL_TokenType token_type);
+
 noomL_ErrorType noomL_lex(const char* s, noom_uint_t start, noomL_Token* token); // TODO: add more error data
 
diff --git a/src/main.c b/src/main.c
index 92fd55f..7645fa1 100644
--- a/src/main.c
+++ b/src/main.c
@@ -15,7 +15,7 @@ void print_node(noomP_Node* node, noom_uint_t depth) {
 	printf("{\n");
 
 	tab(depth+1);
-	printf("type: %d\n", node->type);
+	printf("type: %s\n", noomP_formatNodeType(node->type));
 
 	tab(depth+1);
 	printf("location: %lld\n", node->source_offset);
@@ -42,7 +42,7 @@ int main(int argc, char** argv) {
 	while (1) {
 		noomL_lex(code, pos, &token);
 
-		printf("%d ", token.type);
+		printf("%s ", noomL_formatTokenType(token.type));
 		for (noom_uint_t i = 0; i < token.length; i++) putchar((code + token.offset)[i]);
 		putchar('\n');
 
diff --git a/src/parser.c b/src/parser.c
index 6290b6e..05298ee 100644
--- a/src/parser.c
+++ b/src/parser.c
@@ -1,6 +1,39 @@
 #include "parser.h"
 #include "helper.h"
 
+const char *noomP_formatNodeType(noomP_NodeType node_type) {
+	switch (node_type) {
+		case NOOMP_NODE_PROGRAM:
+			return "program";
+		case NOOMP_NODE_VARNAME:
+			return "varname";
+		case NOOMP_NODE_LOCALDECLARATION:
+			return "local declaration";
+		case NOOMP_NODE_IFSTATEMENT:
+			return "if statement";
+		case NOOMP_NODE_WHILELOOP:
+			return "while loop";
+		case NOOMP_NODE_BLOCK:
+			return "block";
+		case NOOMP_NODE_BREAK:
+			return "break";
+		case NOOMP_NODE_VARIABLE:
+			return "variable";
+		case NOOMP_NODE_NUMBERLITERAL:
+			return "number literal";
+		case NOOMP_NODE_BOOLEANLITERAL:
+			return "boolean literal";
+		case NOOMP_NODE_NILLITERAL:
+			return "nil literal";
+		case NOOMP_NODE_UNARYOPERATOR:
+			return "unary operator";
+		case NOOMP_NODE_BINARYOPERATOR:
+			return "binary operator";
+		default:
+			return "unknown";
+	}
+}
+
 int noomP_peek(noomP_Parser* parser, noomL_Token* token) {
 	while (1) {
 		int success = noomL_lex(parser->code, parser->lex_offset, token);
diff --git a/src/parser.h b/src/parser.h
index 2b87ad9..118295a 100644
--- a/src/parser.h
+++ b/src/parser.h
@@ -19,7 +19,9 @@ typedef enum noomP_NodeType {
 	NOOMP_NODE_NILLITERAL,
 
 	NOOMP_NODE_UNARYOPERATOR,
-	NOOMP_NODE_BINARYOPERATOR
+	NOOMP_NODE_BINARYOPERATOR,
+
+	NOOMP_NODE_NCOUNT,
 } noomP_NodeType;
 
 typedef struct noomP_Node {
@@ -42,6 +44,8 @@ typedef struct noomP_Parser { // todo: track location in code with line/column?
 	noomP_Node* last_node;
 } noomP_Parser;
 
+const char *noomP_formatNodeType(noomP_NodeType node_type);
+
 int noomP_peek(noomP_Parser* parser, noomL_Token* token);
 void noomP_skip(noomP_Parser* parser, noomL_Token* token);