diff --git a/include/library.h b/include/library.h
index 795792b33..f1a58f6c5 100644
--- a/include/library.h
+++ b/include/library.h
@@ -183,6 +183,9 @@ class ConcurrentCache;
 template<typename, typename>
 class MultiKeyCache;
 
+using LibraryPtr = std::shared_ptr<Library>;
+using ConstLibraryPtr = std::shared_ptr<const Library>;
+
 /**
  * A Library store several books.
  */
@@ -198,8 +201,8 @@ class Library: public std::enable_shared_from_this<Library>
   Library();
 
  public:
-  [[nodiscard]] static std::shared_ptr<Library> create() {
-    return std::shared_ptr<Library>(new Library());
+  [[nodiscard]] static LibraryPtr create() {
+    return LibraryPtr(new Library());
   }
   ~Library();
 
@@ -405,6 +408,7 @@ private: //data
   std::unique_ptr<Xapian::WritableDatabase> m_bookDB;
 };
 
+
 }
 
 #endif
diff --git a/include/manager.h b/include/manager.h
index 9b13da39c..415db6224 100644
--- a/include/manager.h
+++ b/include/manager.h
@@ -37,10 +37,10 @@ namespace kiwix
 class LibraryManipulator
 {
  public: // functions
-  explicit LibraryManipulator(std::shared_ptr<Library> library);
+  explicit LibraryManipulator(LibraryPtr library);
   virtual ~LibraryManipulator();
 
-  std::shared_ptr<Library> getLibrary() const { return library; }
+  LibraryPtr getLibrary() const { return library; }
 
   bool addBookToLibrary(const Book& book);
   void addBookmarkToLibrary(const Bookmark& bookmark);
@@ -52,7 +52,7 @@ class LibraryManipulator
   virtual void booksWereRemovedFromLibrary();
 
  private: // data
-  std::shared_ptr<kiwix::Library> library;
+  LibraryPtr library;
 };
 
 /**
@@ -65,7 +65,7 @@ class Manager
 
  public: // functions
   explicit Manager(LibraryManipulator manipulator);
-  explicit Manager(std::shared_ptr<Library> library);
+  explicit Manager(LibraryPtr library);
 
   /**
    * Read a `library.xml` and add book in the file to the library.
diff --git a/src/manager.cpp b/src/manager.cpp
index 9a4f9b28c..ba4d0c75f 100644
--- a/src/manager.cpp
+++ b/src/manager.cpp
@@ -31,7 +31,7 @@ namespace kiwix
 // LibraryManipulator
 ////////////////////////////////////////////////////////////////////////////////
 
-LibraryManipulator::LibraryManipulator(std::shared_ptr<Library> library)
+LibraryManipulator::LibraryManipulator(LibraryPtr library)
   : library(library)
 {}
 
@@ -85,7 +85,7 @@ Manager::Manager(LibraryManipulator manipulator):
 {
 }
 
-Manager::Manager(std::shared_ptr<Library> library) :
+Manager::Manager(LibraryPtr library) :
   writableLibraryPath(""),
   manipulator(LibraryManipulator(library))
 {
diff --git a/src/name_mapper.cpp b/src/name_mapper.cpp
index f44227042..bf2a2e4dd 100644
--- a/src/name_mapper.cpp
+++ b/src/name_mapper.cpp
@@ -63,7 +63,7 @@ std::string HumanReadableNameMapper::getIdForName(const std::string& name) const
 // UpdatableNameMapper
 ////////////////////////////////////////////////////////////////////////////////
 
-UpdatableNameMapper::UpdatableNameMapper(std::shared_ptr<Library> lib, bool withAlias)
+UpdatableNameMapper::UpdatableNameMapper(LibraryPtr lib, bool withAlias)
   : library(lib)
   , withAlias(withAlias)
 {
diff --git a/src/server.cpp b/src/server.cpp
index 2e258245f..1a4ecfa9e 100644
--- a/src/server.cpp
+++ b/src/server.cpp
@@ -29,7 +29,7 @@
 
 namespace kiwix {
 
-Server::Server(std::shared_ptr<Library> library, std::shared_ptr<NameMapper> nameMapper) :
+Server::Server(LibraryPtr library, std::shared_ptr<NameMapper> nameMapper) :
   mp_library(library),
   mp_nameMapper(nameMapper),
   mp_server(nullptr)
diff --git a/src/server/internalServer.cpp b/src/server/internalServer.cpp
index 11bdd0971..08d35e702 100644
--- a/src/server/internalServer.cpp
+++ b/src/server/internalServer.cpp
@@ -411,7 +411,7 @@ public:
 };
 
 
-InternalServer::InternalServer(std::shared_ptr<Library> library,
+InternalServer::InternalServer(LibraryPtr library,
                                std::shared_ptr<NameMapper> nameMapper,
                                std::string addr,
                                int port,
diff --git a/src/server/internalServer.h b/src/server/internalServer.h
index e11c690b5..cdd7cebe2 100644
--- a/src/server/internalServer.h
+++ b/src/server/internalServer.h
@@ -92,7 +92,7 @@ class OPDSDumper;
 
 class InternalServer {
   public:
-    InternalServer(std::shared_ptr<Library> library,
+    InternalServer(LibraryPtr library,
                    std::shared_ptr<NameMapper> nameMapper,
                    std::string addr,
                    int port,
@@ -178,7 +178,7 @@ class InternalServer {
     int m_ipConnectionLimit;
     struct MHD_Daemon* mp_daemon;
 
-    std::shared_ptr<Library> mp_library;
+    LibraryPtr mp_library;
     std::shared_ptr<NameMapper> mp_nameMapper;
 
     SearchCache searchCache;