This text on Mandarin Phonetic Symbols II (MPS II), Taiwan's former official romanization system for Mandarin Chinese, is from a July 1986 book by Taiwan's Ministry of Education.

English text Chinese text
A brief history of romanization, focusing on the creation of the MPS2 romanization system  
Transcription Rules for MPS2 Transcription Rules for MPS II
phonetic classification of sounds in MPS2 phonetic classification of sounds in MPS II
basic comparison of MPS1 (zhuyin fuhao) and MPS2 basic comparison of MPS I (zhuyin fuhao) and MPS II
full list of possible Mandarin syllables in MPS1 (zhuyin fuhao) and MPS2