diff --git a/expert/browser/report.py b/expert/browser/report.py
index b8f5f9b..27912eb 100644
--- a/expert/browser/report.py
+++ b/expert/browser/report.py
@@ -85,7 +85,7 @@ class ResultsView(NodeView):
     def reportInstance(self):
         instance = component.getAdapter(self.report, IReportInstance,
                                         name=self.report.reportType)
-        instance.request = self.request
+        instance.view = self
         return instance
 
     #@Lazy
diff --git a/expert/configure.zcml b/expert/configure.zcml
index 03543ad..68c5d79 100644
--- a/expert/configure.zcml
+++ b/expert/configure.zcml
@@ -22,9 +22,9 @@
            provides="loops.expert.report.IReport" trusted="True" />
   <class class="loops.expert.report.Report">
     <require permission="zope.View"
-             interface="loops.expert.report.IReportSchema" />
+             interface="loops.expert.report.IReport" />
     <require permission="zope.ManageContent"
-             set_schema="loops.expert.report.IReportSchema" />
+             set_schema="loops.expert.report.IReport" />
   </class>
 
   <adapter factory="loops.expert.report.DefaultConceptReportInstance"
diff --git a/expert/report.py b/expert/report.py
index fdcef10..89a8925 100644
--- a/expert/report.py
+++ b/expert/report.py
@@ -29,6 +29,7 @@ from zope.security.proxy import removeSecurityProxy
 from cybertools.composer.report.base import Report as BaseReport
 from cybertools.composer.report.base import LeafQueryCriteria, CompoundQueryCriteria
 from cybertools.composer.report.interfaces import IReport as IBaseReport
+from cybertools.composer.report.interfaces import IReportParams
 from cybertools.composer.report.result import ResultSet, Row
 from cybertools.util.jeep import Jeep
 from loops.common import AdapterBase
@@ -40,7 +41,7 @@ from loops.util import _
 
 # interfaces
 
-class IReport(ILoopsAdapter):
+class IReport(ILoopsAdapter, IReportParams):
     """ The report adapter for the persistent object (concept) that stores
         the report in the concept map.
     """
@@ -53,19 +54,11 @@ class IReport(ILoopsAdapter):
         required=True)
 
 
-class IReportSchema(IBaseReport, IReport):
-    """ All report attributes - use for security declarations.
-    """
-
-
-class IReportInstance(Interface):
+class IReportInstance(IBaseReport):
     """ The report-type-specific object (an adapter on the report) that
         does the real report execution stuff.
     """
 
-    label = Attribute('The user-friendly label of the report type specified '
-                'by this instance class.')
-
 
 # report concept adapter and instances
 
@@ -85,12 +78,18 @@ class ReportInstance(BaseReport):
 
     rowFactory = Row
 
+    view = None     # set upon creation
+
     def __init__(self, context):
         self.context = context
 
     def getResultsRenderer(self, name, macros):
         return macros[name]
 
+    @property
+    def queryCriteria(self):
+        return self.context.queryCriteria
+
     def getResults(self, dynaParams=None):
         crit = self.queryCriteria
         if crit is None:
@@ -105,8 +104,21 @@ class ReportInstance(BaseReport):
                          sortCriteria=self.getSortCriteria(), queryCriteria=qc)
 
     def selectObjects(self, parts):
+        # to be implemented by subclass
         return []
 
+    @Lazy
+    def conceptManager(self):
+        return self.view.conceptManager
+
+    @Lazy
+    def recordManager(self):
+        return self.view.loopsRoot.getRecordManager()
+
+    @Lazy
+    def hasReportPredicate(self):
+        return self.conceptManager['hasreport']
+
 
 class ReportTypeSourceList(object):
 
diff --git a/organize/work/README.txt b/organize/work/README.txt
index 2946e1e..4f1ac64 100644
--- a/organize/work/README.txt
+++ b/organize/work/README.txt
@@ -183,12 +183,47 @@ So we use the PersonWorkItems view, assigning john to the query.
 Work Reports
 ============
 
+First we have to make sure that there is a report concept type available.
+In addition we need a predicate that connects one or more tasks with a report.
+
+  >>> from loops.expert.report import IReport, Report
+  >>> component.provideAdapter(Report)
+  >>> tReport = addAndConfigureObject(concepts, Concept, 'report',
+  ...                   title=u'Report', conceptType=concepts.getTypeConcept(),
+  ...                   typeInterface=IReport)
+  >>> hasReport = addAndConfigureObject(concepts, Concept, 'hasreport',
+  ...                   title=u'has Report', conceptType=concepts.getPredicateType())
+
+Now we can create a report and register it as the report for the task
+used above.
+
+  >>> workStatement = addAndConfigureObject(concepts, Concept, 'work_statement',
+  ...                   title=u'Work Statement', conceptType=tReport,
+  ...                   reportType='work_report')
+  >>> workStatement.assignChild(task01, hasReport)
+
+The executable report is a report instance that is an adapter to the
+(adapted) report instance.
+
   >>> from loops.organize.work.report import WorkReportInstance
   >>> from loops.expert.report import IReportInstance
   >>> component.provideAdapter(WorkReportInstance,
   ...                          provides=IReportInstance,
   ...                          name='work_report')
 
+The user interface to the report is a report view, the results are presented
+in a results view.
+
+  >>> from loops.view import Node
+  >>> reportNode = addAndConfigureObject(home, Node, 'report',
+  ...                   title=u'Report', target=workStatement)
+  >>> from loops.expert.browser.report import ReportView, ResultsView
+  >>> resultsView = ResultsView(reportNode, TestRequest())
+
+  >>> results = resultsView.results()
+  >>> len(results.data)
+  2
+
 
 Fin de partie
 =============
diff --git a/organize/work/report.py b/organize/work/report.py
index 71ec849..d7bab83 100644
--- a/organize/work/report.py
+++ b/organize/work/report.py
@@ -28,14 +28,17 @@ from cybertools.composer.report.base import Report
 from cybertools.composer.report.base import LeafQueryCriteria, CompoundQueryCriteria
 from cybertools.composer.report.field import Field
 from cybertools.composer.report.result import ResultSet, Row as BaseRow
+from cybertools.organize.interfaces import IWorkItems
 from cybertools.util.jeep import Jeep
+from loops.common import adapted, baseObject
 from loops.expert.report import ReportInstance
+from loops import util
 
 results_template = ViewPageTemplateFile('results.pt')
 
 
-task = Field('task', u'Task',
-                description=u'The task to which work items belong.',
+tasks = Field('tasks', u'Tasks',
+                description=u'The tasks to which work items belong.',
                 executionSteps=['query', 'output', 'sort'])
 work = Field('work', u'Work',
                 description=u'The short description of the work.',
@@ -65,12 +68,20 @@ class WorkReportInstance(ReportInstance):
     label = u'Work Report'
 
     rowFactory = WorkRow
-    fields = Jeep((day, dayFrom, dayTo, task, work, workDescription))
+    fields = Jeep((day, dayFrom, dayTo, tasks, work, workDescription))
     defaultOutputFields = fields
 
-    @Lazy
+    @property
     def queryCriteria(self):
-        # TODO: take from persistent report where appropriate
+        crit = self.context.queryCriteria
+        if crit is None:
+            f = self.fields['tasks']
+            tasks = baseObject(self.context).getChildren([self.hasReportPredicate])
+            crit = [LeafQueryCriteria(f.name, f.operator, tasks, f)]
+        return CompoundQueryCriteria(crit)
+
+    @property
+    def xx_queryCriteria(self):
         crit = [LeafQueryCriteria(f.name, f.operator, None, f)
                     for f in self.getAllQueryFields()]
         return CompoundQueryCriteria(crit)
@@ -79,8 +90,31 @@ class WorkReportInstance(ReportInstance):
         return results_template.macros[name]
 
     def selectObjects(self, parts):
-        task = parts.get('task')
-        if not task:
-            return []
-        return []
+        result = []
+        tasks = parts.pop('tasks').comparisonValue
+        for t in list(tasks):
+            tasks.extend(self.getAllSubtasks(t))
+        for t in tasks:
+            result.extend(self.selectWorkItems(t, parts))
+        # TODO: remove parts already used for selection from parts list
+        return result
 
+    def selectWorkItems(self, task, parts):
+        wi = self.workItems
+        return wi.query(task=util.getUidForObject(task))
+
+    def getAllSubtasks(self, concept):
+        result = []
+        for c in concept.getChildren():
+            if c.conceptType == self.taskType:
+                result.append(c)
+            result.extend(self.getAllSubtasks(c))
+        return result
+
+    @Lazy
+    def taskType(self):
+        return self.conceptManager['task']
+
+    @Lazy
+    def workItems(self):
+        return IWorkItems(self.recordManager['work'])
diff --git a/organize/work/results.pt b/organize/work/results.pt
index 0d1cec0..fbd482b 100644
--- a/organize/work/results.pt
+++ b/organize/work/results.pt
@@ -11,7 +11,8 @@
     </tr>
     <tr tal:repeat="row view/results">
         <tal:column repeat="col view/displayedColumns">
-            <metal:column use-macro="python: view.getColumnRenderer(col.renderer)" />
+            <p tal:content="col/renderer" />
+            <xmetal:column use-macro="python:view.getColumnRenderer(col.renderer)" />
         </tal:column>
     </tr>
   </table>