diff --git a/notebooks/00.00-Preface.ipynb b/notebooks/00.00-Preface.ipynb
index 7d635a808..995af2d81 100644
--- a/notebooks/00.00-Preface.ipynb
+++ b/notebooks/00.00-Preface.ipynb
@@ -112,7 +112,7 @@
    "source": [
     "## Outline of the Book\n",
     "\n",
-    "Each chapter of this book focuses on a particular package or tool that contributes a fundamental piece of the Python Data Sciece story.\n",
+    "Each chapter of this book focuses on a particular package or tool that contributes a fundamental piece of the Python Data Science story.\n",
     "\n",
     "1. IPython and Jupyter: these packages provide the computational environment in which many Python-using data scientists work.\n",
     "2. NumPy: this library provides the ``ndarray`` for efficient storage and manipulation of dense data arrays in Python.\n",