diff --git a/src/kprint/README.md b/src/kprint/README.md
index ec7e124..96375a2 100644
--- a/src/kprint/README.md
+++ b/src/kprint/README.md
@@ -1,5 +1,19 @@
 # kprintf
-It is just my variant of printf.
+It is just my cross-plaform variant of printf.
+Unlike in standard printf, `%l...` and `%ll...` placeholders dont depend on size of `long int` and `long long int`. And you can change terminal colors by unix codes (`\e[92m`) even on Windows.
+
+| type                    | placeholder             |
+|-------------------------|-------------------------|
+| int8 / int16 / int32    | %i / %d                 |
+| int64                   | %li / %ld / %lld / %lli |
+| uint8 / uint16 / uint32 | %u                      |
+| uint64                  | %lu / %llu              |
+| float32 / float64       | %f                      |
+| char                    | %c                      |
+| char[]                  | %s                      |
+| void*                   | %p / %x                 |
+
+<br>
 
 # kprint
 I don't really like printf function (and its variants), so i made safer and more convinient replacement.
@@ -33,4 +47,4 @@ I don't really like printf function (and its variants), so i made safer and more
     Maybe m=MaybeNull;
     kprint(kprint_fgBlue | kprint_fmtString, "Maybe: ", kprint_fgGreen | ktid_MaybePtr, &m);
     ```  
-    output: <span style="color:blue">Maybe:</span> <span style="color:lightgreen">{value={0, ktid_Null}}</span>
\ No newline at end of file
+    output: <span style="color:blue">Maybe:</span> <span style="color:lightgreen">{value={0, ktid_Null}}</span>
diff --git a/src/kprint/kprintf.h b/src/kprint/kprintf.h
index 0ca5a68..5bb4fa9 100644
--- a/src/kprint/kprintf.h
+++ b/src/kprint/kprintf.h
@@ -4,7 +4,7 @@
 extern "C" {
 #endif
 
-// cross-platform kprintf analog
+// cross-platform printf analog
 void kprintf(const char* format, ...);
 
 #if __cplusplus