@chapter Maintaining Large Programs
This chapter describes Emacs features for maintaining large
-programs. In addition to the features described here, you may find
-the @file{ERT} (``Emacs Lisp Regression Testing'') library useful in
-this context (@pxref{Top,,ERT,ert, Emacs Lisp Regression Testing}).
+programs. If you are maintaining a large Lisp program, then in
+addition to the features described here, you may find
+the @file{ERT} (``Emacs Lisp Regression Testing'') library useful
+(@pxref{Top,,ERT,ert, Emacs Lisp Regression Testing}).
@menu
* Version Control:: Using version control systems.