"I'd read many books on functional analysis"

[@errantwashere]

Errant was here

[@ranindunimesh2998]

was he?

[@sametekiz3709]

​@@ranindunimesh2998not sure about that

[@erinyadav]

Book writer name

[@atishjoygobin8678]

Shing-Tung Yau

[@sametekiz3709]

?????