diff --git a/autotests/testmemorycalendar.h b/autotests/testmemorycalendar.h
--- a/autotests/testmemorycalendar.h
+++ b/autotests/testmemorycalendar.h
@@ -23,6 +23,7 @@
     void testRecurrenceExceptions();
     void testChangeRecurId();
     void testRawEventsForDate();
+    void testVisibility();
 };
 
 #endif
diff --git a/autotests/testmemorycalendar.cpp b/autotests/testmemorycalendar.cpp
--- a/autotests/testmemorycalendar.cpp
+++ b/autotests/testmemorycalendar.cpp
@@ -307,3 +307,22 @@
 
     cal->close();
 }
+
+void MemoryCalendarTest::testVisibility()
+{
+    MemoryCalendar::Ptr cal(new MemoryCalendar(QTimeZone::utc()));
+    const QString notebook = QLatin1String("Notebook");
+
+    QVERIFY(cal->addNotebook(notebook, true));
+    QVERIFY(cal->isVisible(notebook));
+
+    Event::Ptr event = Event::Ptr(new Event());
+    QVERIFY(cal->addIncidence(event));
+    QVERIFY(cal->setNotebook(event, notebook));
+
+    QVERIFY(cal->isVisible(event));
+
+    QVERIFY(cal->updateNotebook(notebook, false));
+    QVERIFY(!cal->isVisible(notebook));
+    QVERIFY(!cal->isVisible(event));
+}
diff --git a/src/calendar.h b/src/calendar.h
--- a/src/calendar.h
+++ b/src/calendar.h
@@ -483,6 +483,13 @@
     */
     Q_REQUIRED_RESULT bool isVisible(const Incidence::Ptr &incidence) const;
 
+    /**
+      Check if notebook is visible.
+      @param notebook notebook uid.
+      @return true if notebook is visible, false otherwise
+    */
+    Q_REQUIRED_RESULT bool isVisible(const QString &notebook) const;
+
     /**
       List all notebook incidences in the memory.
 
diff --git a/src/calendar.cpp b/src/calendar.cpp
--- a/src/calendar.cpp
+++ b/src/calendar.cpp
@@ -324,6 +324,12 @@
         return false;
     } else {
         d->mNotebooks.insert(notebook, isVisible);
+        const QList<Incidence::Ptr> incidences = d->mNotebookIncidences.values(notebook);
+        for (Incidence::Ptr incidence : incidences) {
+            QHash<Incidence::Ptr, bool>::Iterator it = d->mIncidenceVisibility.find(incidence);
+            if (it != d->mIncidenceVisibility.end())
+                *it = isVisible;
+        }
         return true;
     }
 }
@@ -374,6 +380,12 @@
     return rv;
 }
 
+bool Calendar::isVisible(const QString &notebook) const
+{
+    QHash<QString, bool>::ConstIterator it = d->mNotebooks.find(notebook);
+    return (it != d->mNotebooks.constEnd()) ? *it : true;
+}
+
 void Calendar::clearNotebookAssociations()
 {
     d->mNotebookIncidences.clear();