diff --git a/META b/META
index 31a82d1..7cea57e 100644
--- a/META
+++ b/META
@@ -1,6 +1,6 @@
 name="sequence"
 version="0.1"
-description="Abstract sequences of elements, for conversion into and from data structures"
+description="Abstract sequences of elements, for conversion into and from data structures, and a tiny S-expression library."
 requires=""
-archive(byte) = "sequence.cma"
-archive(native) = "sequence.cmxa"
+archive(byte) = "sequence.cma sexpr.cma"
+archive(native) = "sequence.cmxa sexpr.cmxa"
diff --git a/Makefile b/Makefile
index 2d66f76..8811073 100644
--- a/Makefile
+++ b/Makefile
@@ -1,9 +1,9 @@
 
 NAME = sequence
 DOC = sequence.docdir/index.html
-TARGETS = sequence.cma sequence.cmxa sequence.cmi sequence.a
+TARGETS = sequence.cma sequence.cmxa sequence.cmi sequence.a sexpr.cma sexpr.cmxa sexpr.cmi
 LIB = $(addprefix _build/, $(TARGETS)) 
-INSTALL = $(LIB) sequence.mli
+INSTALL = $(LIB) sequence.mli sexpr.mli
 
 all:
 	ocamlbuild tests.native $(TARGETS) $(DOC)
diff --git a/README.md b/README.md
index 9cd0c07..77e3068 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,9 @@
 Sequence
 ========
 
-Simple sequence abstract datatype, intented to transfer a finite number of elements from one data structure to another.
+Simple sequence abstract datatype, intented to transfer a finite number of
+elements from one data structure to another. It also provides a tiny
+library for S-expressions, convertible to streams of tokens, and conversely.
 
 Build
 =====
@@ -11,7 +13,8 @@ You need OCaml, say OCaml 3.12 or OCaml 4.0.
     $ make
 
 To see how to use it, check `tests.ml`. `sequence.ml` has a few examples of how to convert
-data structures into sequences, and conversely.
+data structures into sequences, and conversely. The module `sexpr.mli` exposes the interface
+of the S-expression library.
 
 License
 =======