How to use it
The chart follows the order Taiwanese schools teach, in seven groups made in the same part of the mouth. Learn one group a day: say each sign out loud as you point at it, then cover the pinyin and try again. After a week, read the words on the chart in zhuyin before you look at the pinyin.
To hear every sign, tap through the zhuyin chart with sounds, where Lin says each sign and its word.