diff --git a/_things/thing-06.md b/_things/thing-06.md
index 7d724a7..c8757ec 100644
--- a/_things/thing-06.md
+++ b/_things/thing-06.md
@@ -20,12 +20,13 @@ Traditional information sources such as books, photos and maps can
 easily survive for years, decades or even centuries but digital items
 require special care to keep them usable over time.
 
-1.  This  [video](https://youtu.be/qEmmeFFafUs) (2.5 min) from the US
+1.  This [video](https://youtu.be/qEmmeFFafUs) (2.5 min) from the US
     Library of Congress shows the vulnerability of “born digital”
     objects like research data: they are fragile; they are dependent on
     software and hardware; and they require active management.
-2.  If you have time: look at the ANDS page on [data
+2.  Look at the ANDS page on [data
     preservation](https://www.ands.org.au/working-with-data/data-management/data-preservation).
+3.  If you have time, look at the [Digital Preservation Handbook](https://www.dpconline.org/handbook) by the Digital Preservation Coalition (DPC)
 
 **Consider:** What key advice would you give someone about preserving
 their born digital objects. For example the family historian, a
@@ -77,4 +78,4 @@ selecting a content type of interest.
 If you have time: download the current version of DROID and try using it
 to profile a small number of files.
 
-**Consider:** Are PRONOM and DROID tools you'd like to explore further?
\ No newline at end of file
+**Consider:** Are PRONOM and DROID tools you'd like to explore further?