diff --git a/README.md b/README.md
index 1af4796..2287127 100644
--- a/README.md
+++ b/README.md
@@ -319,6 +319,26 @@ Run `M-x customize-group RET doom-modeline RET` or set the variables.
 
 ## FAQ
 
+1. How to display icons correctly?
+
+    [all-the-icons](https://github.com/domtronn/all-the-icons.el) are necessary.
+    Run `M-x all-the-icons-install-fonts` to install the resource fonts. On
+    Windows, the fonts should be installed manually. `all-the-icons` only
+    support GUI. If you don't like color icons, `(setq all-the-icons-color-icons
+    nil)` to disable it. Please refer to
+    [all-the-icons.el](https://github.com/domtronn/all-the-icons.el) for
+    details.
+
+    If the icons are not displayed correctly although `all-the-icons` fonts are
+    installed correctly, please install the
+    [non-free](http://users.teilar.gr/~g1951d/License.pdf) font
+    [Symbola](https://dn-works.com/wp-content/uploads/2020/UFAS-Fonts/Symbola.zip).
+    This issue usually occurs on Windows.
+
+    If you are using [cnfonts](https://github.com/tumashu/cnfonts), it will
+    conflict with `all-the-icons`. The workaround is
+    [here](https://github.com/seagle0128/doom-modeline/issues/278#issuecomment-569510336).
+
 1. I am experiencing the laggy issue, how to resolve it?
 
    Add this configuration into your init file: