diff --git a/prismic/api.py b/prismic/api.py
index ab3a0bc..0f29e18 100644
--- a/prismic/api.py
+++ b/prismic/api.py
@@ -117,7 +117,7 @@ def form(self, name):
             raise Exception("Bad form name %s, valid form names are: %s" % (name, ', '.join(self.forms)))
         return SearchForm(self.forms.get(name), self.access_token, self.cache, self.request_handler)
 
-    def query(self, q, ref=None, page_size=None, page=None, orderings=None, after=None, fetch_links=None):
+    def query(self, q, ref=None, page_size=None, page=None, orderings=None, after=None, fetch_links=None, lang=None):
         if ref is None:
             ref = self.get_master()
         form = self.form('everything').ref(ref)
@@ -131,20 +131,23 @@ def query(self, q, ref=None, page_size=None, page=None, orderings=None, after=No
             form.after(after)
         if fetch_links is not None:
             form.fetch_links(fetch_links)
+        if lang is not None:
+            form.lang(lang)
         return form.query(q).submit()
 
-    def query_first(self, q, ref=None):
-        documents = self.query(q, ref, page_size=1, page=1).documents
+    def query_first(self, q, ref=None, lang=None):
+        documents = self.query(q, ref, page_size=1, page=1, lang=lang).documents
         if len(documents) > 0:
             return documents[0]
 
-    def get_by_uid(self, type, uid, ref=None):
-        return self.query_first(predicates.at('my.' + type + '.uid', uid), ref)
+    def get_by_uid(self, type, uid, ref=None, lang='*'):
+        return self.query_first(predicates.at('my.' + type + '.uid', uid), ref, lang=lang)
 
-    def get_by_id(self, id, ref=None):
-        return self.query_first(predicates.at('document.id', id), ref)
+    def get_by_id(self, id, ref=None, lang='*'):
+        return self.query_first(predicates.at('document.id', id), ref, lang=lang)
 
-    def get_by_ids(self, ids, ref=None, page_size=None, page=None, orderings=None, after=None, fetch_links=None):
+    def get_by_ids(self, ids, ref=None, page_size=None, page=None, orderings=None,
+                   after=None, fetch_links=None, lang='*'):
         return self.query(
             predicates.in_('document.id', ids),
             ref,
@@ -152,11 +155,12 @@ def get_by_ids(self, ids, ref=None, page_size=None, page=None, orderings=None, a
             page=page,
             orderings=orderings,
             after=after,
-            fetch_links=fetch_links
+            fetch_links=fetch_links,
+            lang=lang
         )
 
-    def get_single(self, type, ref=None):
-        return self.query_first(predicates.at('document.type', type), ref)
+    def get_single(self, type, ref=None, lang=None):
+        return self.query_first(predicates.at('document.type', type), ref, lang=lang)
 
 class Ref(object):
     """
@@ -316,6 +320,13 @@ def pageSize(self, nb_results):
         """
         return self.page_size(nb_results)
 
+    def lang(self, lang):
+        """
+        Set query language eg. "fr-fr" for traditional French
+        :param lang: string
+        """
+        return self.set("lang", lang)
+
     def count(self):
         """Count the total number of results
         """
diff --git a/setup.py b/setup.py
index 96b9ce3..ff2b308 100644
--- a/setup.py
+++ b/setup.py
@@ -8,7 +8,7 @@
 
 setup(
     name='prismic',
-    version='1.5.1',
+    version='1.6.0',
     description='Prismic.io development kit',
     author='The Prismic.io Team',
     author_email='contact@prismic.io',
diff --git a/tests/test_doc.py b/tests/test_doc.py
index 9d258bb..33d7ba4 100644
--- a/tests/test_doc.py
+++ b/tests/test_doc.py
@@ -113,7 +113,7 @@ def test_images(self):
         url = doc.get_image('all.image').url
         self.assertEqual(
             url,
-            'https://micro.cdn.prismic.io/micro/e185bb021862c2c03a96bea92e170830908c39a3_thermometer.png')
+            'https://images.prismic.io/micro/e185bb021862c2c03a96bea92e170830908c39a3_thermometer.png?auto=compress,format')
 
     def test_date(self):
         api = prismic.get('https://micro.prismic.io/api')
diff --git a/tests/test_prismic.py b/tests/test_prismic.py
index e9821b0..5eb726c 100644
--- a/tests/test_prismic.py
+++ b/tests/test_prismic.py
@@ -147,16 +147,30 @@ def test_get_by_uid(self):
         doc = self.api.get_by_uid('all', 'all')
         self.assertEqual(doc.id, 'WHx-gSYAAMkyXYX_')
 
+    def test_get_by_uid_lang(self):
+        doc = self.api.get_by_uid('all', 'all', lang = 'en-us')
+        self.assertEqual(doc.id, 'WHx-gSYAAMkyXYX_')
+
     def test_get_by_id(self):
         doc = self.api.get_by_id('WHx-gSYAAMkyXYX_')
         self.assertEqual(doc.id, 'WHx-gSYAAMkyXYX_')
 
+    def test_get_by_id_lang(self):
+        doc = self.api.get_by_id('WHx-gSYAAMkyXYX_', lang='en-us')
+        self.assertEqual(doc.id, 'WHx-gSYAAMkyXYX_')
+
     def test_get_by_ids(self):
         result = self.api.get_by_ids(['WHx-gSYAAMkyXYX_', 'WHyJqyYAAHgyXbcj'])
         ids = sorted([doc.id for doc in result.documents])
         self.assertEqual(ids[0], 'WHx-gSYAAMkyXYX_')
         self.assertEqual(ids[1], 'WHyJqyYAAHgyXbcj')
 
+    def test_get_by_ids_lang(self):
+        result = self.api.get_by_ids(['WHx-gSYAAMkyXYX_', 'WHyJqyYAAHgyXbcj'], lang="en-us")
+        ids = sorted([doc.id for doc in result.documents])
+        self.assertEqual(ids[0], 'WHx-gSYAAMkyXYX_')
+        self.assertEqual(ids[1], 'WHyJqyYAAHgyXbcj')
+
     def test_get_single(self):
         doc = self.api.get_single('single')
         self.assertEqual(doc.id, 'V_OplCUAACQAE0lA')