diff --git a/Makefile b/Makefile
index de25fcf..52c187b 100644
--- a/Makefile
+++ b/Makefile
@@ -33,4 +33,11 @@ clean:
 full_clean:
 	@rm -rf $(BUILD_DIR)/* && rm -rf $(OUTPUT_DIR)/*
 
-.PHONY: all clean
+.PHONY: all clean help
+
+help:
+	@echo "usage as follows:\n"\
+	"make all\t--> compiler all and run\n"\
+	"make run\t--> make and run\n"\
+	"make clean\t--> make clean the compiling stuff\n"\
+	"make full_clean\t--> rm all make related files\n"