diff --git a/luna/include/luna/Format.h b/luna/include/luna/Format.h
index c44218d7..28ffd1cd 100644
--- a/luna/include/luna/Format.h
+++ b/luna/include/luna/Format.h
@@ -6,7 +6,14 @@
 typedef Result<void> (*callback_t)(char, void*);
 typedef void (*pure_callback_t)(char, void*);
 
+// Used to format anything that can fail (writing to C FILEs, etc...)
 Result<usize> cstyle_format(const char* format, callback_t callback, void* arg, va_list ap);
+
+// Used to format anything that cannot fail (formatting to a string, writing to the serial port (kernel-only))
 usize pure_cstyle_format(const char* format, pure_callback_t callback, void* arg, va_list ap);
+
+// Convenience function which outputs into a fixed-size buffer (not unlike vsnprintf)
 usize vstring_format(char* buf, usize max, const char* format, va_list ap);
+
+// Convenience function which outputs into a fixed-size buffer (not unlike snprintf)
 usize string_format(char* buf, usize max, const char* format, ...);
\ No newline at end of file