diff --git a/app/View/Pages/doc/md/categories_and_types.ctp b/app/View/Pages/doc/md/categories_and_types.ctp
new file mode 100644
index 000000000..d453a1364
--- /dev/null
+++ b/app/View/Pages/doc/md/categories_and_types.ctp
@@ -0,0 +1,41 @@
+### Attribute Categories vs Types<br /><br />
+
+<?php 
+	$catDefs = array_chunk($categoryDefinitions, 6, true);
+	foreach ($catDefs as $cD): 
+?>
+
+|Category|<?php foreach ($cD as $cat => $catDef) echo ' ' . $cat . ' |'; ?><br />
+<?php 
+		echo '| --- |';
+		foreach ($cD as $cat) echo ':---:|';
+?><br />
+<?php 
+		foreach ($typeDefinitions as $type => $def) {
+			echo '|' . str_replace('|', '&amp;#124;', $type) . '|'; 
+			foreach ($cD as $cat => $catDef) echo (in_array($type, $catDef['types'])? ' X |' : ' |');
+			echo '<br />'; 
+		}
+		echo '<br />';
+	endforeach;
+?>
+
+### Categories<br /><br />
+
+<?php foreach ($categoryDefinitions as $cat => $def) {
+	echo '*&nbsp;&nbsp;&nbsp;**' . $cat . '**: ';
+	if (isset($def['formdesc'])) echo h($def['formdesc']); 
+	else echo h($def['desc']);
+	echo '<br />';
+}?>
+
+<br />
+### Types<br /><br />
+
+<?php foreach ($typeDefinitions as $type => $def) {
+	echo '*&nbsp;&nbsp;&nbsp;**' . $type . '**: ';
+	if (isset($def['formdesc'])) echo h($def['formdesc']); 
+	else echo h($def['desc']);
+	echo '<br />';
+}?>
+