diff --git a/include/library.h b/include/library.h
index 3470438d3..064b302c2 100644
--- a/include/library.h
+++ b/include/library.h
@@ -49,7 +49,6 @@ class Book
   ~Book();
 
   bool update(const Book& other);
-  static bool sortByLastOpen(const Book& a, const Book& b);
   static bool sortByTitle(const Book& a, const Book& b);
   static bool sortBySize(const Book& a, const Book& b);
   static bool sortByDate(const Book& a, const Book& b);
@@ -61,7 +60,6 @@ class Book
   bool readOnly() const { return m_readOnly; }
   const string& id() const { return m_id; }
   const string& path() const { return m_path; }
-  const string& last() const { return m_last; }
   const string& indexPath() const { return m_indexPath; }
   const supportedIndexType& indexType() const { return m_indexType; }
   const string& title() const { return m_title; }
@@ -83,7 +81,6 @@ class Book
   void setReadOnly(bool readOnly) { m_readOnly = readOnly; }
   void setId(const std::string& id) { m_id = id; }
   void setPath(const std::string& path);
-  void setLast(const std::string& last) { m_last = last; }
   void setIndexPath(const std::string& indexPath);
   void setIndexType(supportedIndexType indexType) { m_indexType = indexType;}
   void setTitle(const std::string& title) { m_title = title; }
@@ -105,7 +102,6 @@ class Book
  protected:
   string m_id;
   string m_path;
-  string m_last;
   string m_indexPath;
   supportedIndexType m_indexType;
   string m_title;
diff --git a/src/library.cpp b/src/library.cpp
index 9e88a3868..65fc628a3 100644
--- a/src/library.cpp
+++ b/src/library.cpp
@@ -32,10 +32,6 @@ Book::~Book()
 {
 }
 /* Sort functions */
-bool Book::sortByLastOpen(const kiwix::Book& a, const kiwix::Book& b)
-{
-  return atoi(a.last.c_str()) > atoi(b.last.c_str());
-}
 bool Book::sortByTitle(const kiwix::Book& a, const kiwix::Book& b)
 {
   return a.m_title < b.m_title;
diff --git a/src/manager.cpp b/src/manager.cpp
index bd78edf16..36fc6f74b 100644
--- a/src/manager.cpp
+++ b/src/manager.cpp
@@ -53,9 +53,6 @@ bool Manager::parseXmlDom(const pugi::xml_document& doc,
         removeLastPathElement(libraryPath, true, false), path);
     }
     book.setPath(path);
-    book.setLast(std::string(bookNode.attribute("last").value()) != "undefined"
-                     ? bookNode.attribute("last").value()
-                     : "");
     std::string indexPath = bookNode.attribute("indexPath").value();
     if (isRelativePath(indexPath)) {
       indexPath = computeAbsolutePath(
@@ -288,18 +285,6 @@ bool Manager::removeBookById(const string id)
 {
   return library.removeBookById(id);
 }
-
-bool Manager::updateBookLastOpenDateById(const string id)
-try {
-  auto book = library.getBookById(id);
-  char unixdate[12];
-  sprintf(unixdate, "%d", (int)time(NULL));
-  book.last = unixdate;
-  return true;
-} catch(...) {
-  return false;
-}
-
 bool Manager::setBookIndex(const string id,
                            const string path,
                            const supportedIndexType type)