PowerSearch for books and Article
Try searching with these keywords and subjects, some of them will be on "how to"
CSD provides statistics of Hong Kong in various aspects. Please browse different HK statistics at http://www.censtatd.gov.hk/hkstat/index.jsp.
ISD is HK Governments' news agency and public relations consultant, it is also one of the largest photo archives in Hong Kong. Please visit The Photo Library at North Point for photo browsing and ordering.
MMIS is an online platform for accessing historical maps, photos and old HK newspapers etc.
PRO is the designated government archives keeping most of the HK Government's historical records and images. You can browse the highlighted items online or search for a specific items by using the online catalogue.