diff --git a/basis/io/directories/authors.txt b/basis/io/directories/authors.txt
new file mode 100644
index 0000000000..f372b574ae
--- /dev/null
+++ b/basis/io/directories/authors.txt
@@ -0,0 +1,2 @@
+Slava Pestov
+Doug Coleman
diff --git a/basis/io/directories/hierarchy/authors.txt b/basis/io/directories/hierarchy/authors.txt
new file mode 100644
index 0000000000..1901f27a24
--- /dev/null
+++ b/basis/io/directories/hierarchy/authors.txt
@@ -0,0 +1 @@
+Slava Pestov
diff --git a/basis/io/directories/hierarchy/summary.txt b/basis/io/directories/hierarchy/summary.txt
new file mode 100644
index 0000000000..3480f88d49
--- /dev/null
+++ b/basis/io/directories/hierarchy/summary.txt
@@ -0,0 +1 @@
+Deleting and copying directory hierarchies
diff --git a/basis/io/directories/summary.txt b/basis/io/directories/summary.txt
new file mode 100644
index 0000000000..b77012207b
--- /dev/null
+++ b/basis/io/directories/summary.txt
@@ -0,0 +1 @@
+Listing directories, moving, copying and deleting files
diff --git a/basis/io/files/info/authors.txt b/basis/io/files/info/authors.txt
new file mode 100644
index 0000000000..f372b574ae
--- /dev/null
+++ b/basis/io/files/info/authors.txt
@@ -0,0 +1,2 @@
+Slava Pestov
+Doug Coleman
diff --git a/basis/io/files/info/summary.txt b/basis/io/files/info/summary.txt
new file mode 100644
index 0000000000..5d354fb573
--- /dev/null
+++ b/basis/io/files/info/summary.txt
@@ -0,0 +1 @@
+File and file system meta-data
diff --git a/basis/io/files/links/authors.txt b/basis/io/files/links/authors.txt
new file mode 100644
index 0000000000..f372b574ae
--- /dev/null
+++ b/basis/io/files/links/authors.txt
@@ -0,0 +1,2 @@
+Slava Pestov
+Doug Coleman
diff --git a/basis/io/files/links/summary.txt b/basis/io/files/links/summary.txt
new file mode 100644
index 0000000000..6f5e4598db
--- /dev/null
+++ b/basis/io/files/links/summary.txt
@@ -0,0 +1 @@
+Working with symbolic links
diff --git a/core/io/pathnames/authors.txt b/core/io/pathnames/authors.txt
new file mode 100644
index 0000000000..f372b574ae
--- /dev/null
+++ b/core/io/pathnames/authors.txt
@@ -0,0 +1,2 @@
+Slava Pestov
+Doug Coleman
diff --git a/core/io/pathnames/summary.txt b/core/io/pathnames/summary.txt
new file mode 100644
index 0000000000..de19eed0d1
--- /dev/null
+++ b/core/io/pathnames/summary.txt
@@ -0,0 +1 @@
+Pathname manipulation