Romanised orthographies for Hokkien such as Pe̍h-ōe-jī and Tâi-lô exist, but in Singapore where the language is suppressed, spelling anarchy ensues. I’ll use this thread for future recording of some SG Hokkien learning books: My First Book of Hokkien Words by Kuan Eng (2013)

Tones represented using diacritics marks borrowed from Pinyin.

I've been digging into the digitised holdings of the National Archives of Singapore to find posters of the Speak Mandarin Campaign which decimated "#dialect" use in favour of Mandarin. Launched in 1979, here is one of the earliest posters from the same year: (1/16) The Speak Mandarin Campaign is the society level expansion of a bilingual education policy that tried to unify a polyphonic Chinese-language soundscape. Dialect broadcasts were banned, for example. You get a sense of this polyphony from this 1957 census (Ding 2016): (2/16)