diff --git a/docs/designer/book.toml b/docs/designer/book.toml
new file mode 100644
index 0000000000..8e3d5a464f
--- /dev/null
+++ b/docs/designer/book.toml
@@ -0,0 +1,6 @@
+[book]
+authors = ["Diogo Peralta Cordeiro", "Eliseu Amaro", "Hugo Sales"]
+language = "en"
+multilingual = false
+src = "src"
+title = "GNU social for Designers"
diff --git a/docs/designer/src/SUMMARY.md b/docs/designer/src/SUMMARY.md
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index 0000000000..2c3e48a76f
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+++ b/docs/designer/src/SUMMARY.md
@@ -0,0 +1,3 @@
+# Summary
+
+- [Why a design language?](./design_language.md)
diff --git a/docs/designer/src/design_language.md b/docs/designer/src/design_language.md
new file mode 100644
index 0000000000..c188b07849
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+++ b/docs/designer/src/design_language.md
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+# Why a design language?
+