mistaking vs misreading

mistaking and misreading both are nouns.

Word	Noun	Adjective	Verb	Adverb
mistaking	Yes	No	No	No
misreading	Yes	No	No	No

As nouns, misreading is a hyponym of mistaking; that is, misreading is a word with a more specific, narrower meaning than mistaking:

Other hyponyms of mistaking include imbroglio, misconstrual, misconstruction.

mistaking (noun)	misreading (noun)
putting the wrong interpretation on	misinterpretation caused by inaccurate reading