Sun and moon letters
there is no explanation about moon letters where you hear the ل in أَل and sun letters in wiche the ل is silenced...
Also the exercises are to pick the right arab translation to the English transliteration - Like: 'aSH-SHams' or 'al-ghurfa'. but it would be much more teaching if we'll have to pick the right transliteration to the text in arabic - does it supposed to be with sounded ل or with silenced ل. like, how you shuld prnaounce الثِّقَة ? ath-thiqah or al-thiqah?
the sun letters are: ﻥ ﻝ ﻅ ﻁ ﺽ ﺹﺵ ﺱ ﺯ ﺭ ﺫ ﺩ ﺙ ﺕ the moon letters are: ه ﻱ ﻭ ﻡ ﻙ ﻕ ﻑ ﻍ ﻉ ﺥ ﺡ ﺝ ﺏ and also ء wich I think is not a real letter