diff --git a/src/xlsx/xlsxchart.cpp b/src/xlsx/xlsxchart.cpp
index 39b6ab4..73b5a09 100644
--- a/src/xlsx/xlsxchart.cpp
+++ b/src/xlsx/xlsxchart.cpp
@@ -48,20 +48,51 @@ ChartPrivate::~ChartPrivate()
 
 /*!
  * \class Chart
- *
- * Main class for the charts.
+ * \inmodule QtXlsx
+ * \brief Main class for the charts.
  */
 
+/*!
+  \enum Chart::ChartType
+
+  \value CT_Area
+  \value CT_Area3D,
+  \value CT_Line,
+  \value CT_Line3D,
+  \value CT_Scatter,
+  \value CT_Pie,
+  \value CT_Pie3D,
+  \value CT_Doughnut,
+  \value CT_Bar,
+  \value CT_Bar3D,
+
+  \omitvalue CT_Stock,
+  \omitvalue CT_Radar,
+  \omitvalue CT_OfPie,
+  \omitvalue CT_Surface,
+  \omitvalue CT_Surface3D,
+  \omitvalue CT_Bubble
+*/
+
+/*!
+ * \internal
+ */
 Chart::Chart(Worksheet *parent)
     :OOXmlFile(new ChartPrivate(this))
 {
     d_func()->sheet = parent;
 }
 
+/*!
+ * Destroys the chart.
+ */
 Chart::~Chart()
 {
 }
 
+/*!
+ * Add the data series which is in the range \a range of the \a sheet.
+ */
 void Chart::addSeries(const CellRange &range, Worksheet *sheet)
 {
     Q_D(Chart);
@@ -88,6 +119,10 @@ void Chart::setChartType(ChartType type)
     d->chartType = type;
 }
 
+/*!
+ * \internal
+ *
+ */
 void Chart::setChartStyle(int id)
 {
     Q_UNUSED(id)
diff --git a/src/xlsx/xlsxdocument.cpp b/src/xlsx/xlsxdocument.cpp
index b6e0979..caf2331 100644
--- a/src/xlsx/xlsxdocument.cpp
+++ b/src/xlsx/xlsxdocument.cpp
@@ -396,20 +396,28 @@ QVariant Document::read(int row, int col) const
 }
 
 /*!
- * \brief Insert an \a image to current active worksheet at the position \a row, \a column
+ * Insert an \a image to current active worksheet at the position \a row, \a column
+ * Returns ture if success.
  */
 bool Document::insertImage(int row, int column, const QImage &image)
 {
     return currentWorksheet()->insertImage(row, column, image);
 }
 
+/*!
+ * Creates an chart with the given \a size and insert it to the current
+ * active worksheet at the position \a row, \a col.
+ * The chart will be returned.
+ */
 Chart *Document::insertChart(int row, int col, const QSize &size)
 {
     return currentWorksheet()->insertChart(row, col, size);
 }
 
 /*!
- * \brief Insert an \a image to current active worksheet to the position \a row, \a column with the given
+ * \overload
+ * \deprecated
+ * Insert an \a image to current active worksheet to the position \a row, \a column with the given
  * \a xOffset, \a yOffset, \a xScale and \a yScale.
  */
 int Document::insertImage(int row, int column, const QImage &image, double /*xOffset*/, double /*yOffset*/, double /*xScale*/, double /*yScale*/)
@@ -701,8 +709,11 @@ bool Document::deleteWorksheet(const QString &name)
 }
 
 /*!
+   \deprecated
    Rename current worksheet to new \a name.
    Returns true if the name defined successful.
+
+   \sa renameWorksheet()
  */
 bool Document::setSheetName(const QString &name)
 {
@@ -722,7 +733,9 @@ Worksheet *Document::currentWorksheet() const
 }
 
 /*!
- * \brief Set current worksheet to be the sheet at \a index.
+ *  \deprecated
+ *  Set current worksheet to be the sheet at \a index.
+ *  \sa selectWorksheet()
  */
 void Document::setCurrentWorksheet(int index)
 {
@@ -731,7 +744,9 @@ void Document::setCurrentWorksheet(int index)
 }
 
 /*!
- * \brief Set current selected worksheet to be the sheet named \a name.
+ *  \deprecated
+ *  Set current selected worksheet to be the sheet named \a name.
+ *  \sa selectWorksheet()
  */
 void Document::setCurrentWorksheet(const QString &name)
 {
diff --git a/src/xlsx/xlsxworkbook.cpp b/src/xlsx/xlsxworkbook.cpp
index c38a740..81e3ce7 100755
--- a/src/xlsx/xlsxworkbook.cpp
+++ b/src/xlsx/xlsxworkbook.cpp
@@ -328,6 +328,9 @@ bool Workbook::copyWorksheet(int index, const QString &newName)
     return false;
 }
 
+/*!
+  \deprecated
+*/
 QList<QSharedPointer<Worksheet> > Workbook::worksheets() const
 {
     Q_D(const Workbook);
diff --git a/src/xlsx/xlsxworksheet.cpp b/src/xlsx/xlsxworksheet.cpp
index 52a962e..9cbd50d 100755
--- a/src/xlsx/xlsxworksheet.cpp
+++ b/src/xlsx/xlsxworksheet.cpp
@@ -1087,6 +1087,10 @@ bool Worksheet::addConditionalFormatting(const ConditionalFormatting &cf)
     return true;
 }
 
+/*!
+ * Insert an \a image  at the position \a row, \a column
+ * Returns ture if success.
+ */
 bool Worksheet::insertImage(int row, int column, const QImage &image)
 {
     Q_D(Worksheet);
@@ -1111,11 +1115,21 @@ bool Worksheet::insertImage(int row, int column, const QImage &image)
     return true;
 }
 
+/*!
+ * \overload
+ * Insert an \a image at the position \a row, \a column with the given
+ * \a offset \a xScale and \a yScale.
+ */
 int Worksheet::insertImage(int row, int column, const QImage &image, const QPointF & /*offset*/, double /*xScale*/, double /*yScale*/)
 {
     return insertImage(row, column, image);
 }
 
+/*!
+ * Creates an chart with the given \a size and insert
+ * at the position \a row, \a column.
+ * The chart will be returned.
+ */
 Chart *Worksheet::insertChart(int row, int column, const QSize &size)
 {
     Q_D(Worksheet);