diff --git a/DEVELOP.md b/DEVELOP.md
index 8c43201..534426d 100644
--- a/DEVELOP.md
+++ b/DEVELOP.md
@@ -71,3 +71,4 @@ MShellObject
 ## References
 
 [fish shell built in](https://github.com/fish-shell/fish-shell/tree/master/src/builtins)
+[Stroustrop's Rule](https://buttondown.com/hillelwayne/archive/stroustrops-rule/)
diff --git a/doc/mshell.md b/doc/mshell.md
index 9af1d29..b5c514d 100644
--- a/doc/mshell.md
+++ b/doc/mshell.md
@@ -21,6 +21,7 @@
 - `cd`: Change directory `(string -- )`
 - `toFloat`: Convert to float. `(numeric -- float)`
 - `readFile`: Read file into string. `(string -- string)`
+- `readTsvFile`: Read a TSV file into list of list of strings. `(string -- list[list[string]])`
 - `stdin`: Drop stdin onto the stack `( -- string)`
 - `..`: Drop stdin onto the stack and split by lines `( -- list[string])`
 - `foldl`: Fold left. `(quote initial list -- result)`
diff --git a/lib/std.msh b/lib/std.msh
index f3df728..18841d7 100644
--- a/lib/std.msh
+++ b/lib/std.msh
@@ -116,6 +116,12 @@ def abs
     [(dup 0 <) (-1 *)] if
 end
 
+
 def tab "	" end
 def tsplit tab split end
 def uw unlines w end
+
+# readTsvFile (str -- list[list[str]])
+def readTsvFile
+    readFile lines (tsplit) map end
+end