58.11.Z - Book publishing
17.23.Z - Manufacture of paper stationery
18.12.Z - Other printing
18.13.Z - Pre-press and pre-media services
18.14.Z - Binding and related services
32.99.Z - Other manufacturing notelsewhere classified
46.49.Z - Wholesale of other household goods
46.90.Z - Non-specialised wholesale trade
47.61.Z - Retail sale of books in specialised stores
47.91.Z - Retail sale via mail order houses or via Internet
58.19.Z - Other publishing activities
63.12.Z - Web portals
85.60.Z - Educational support activities