True!
Presumably it's a lot better than Andrew Robinson's unreadable
"biography" of Ventris. (His subsequent biographies were
improvements.)
But why did Amalia Gnanadesikan's excellent book have to come from
Wiley-Blackwell -- and hence get no promotion or distribution
whatsoever -- when the shelves are full of junk like David Sacks's?
Even the occasional book on linguistic theory comes from a mainstream
publisher and is on mainstream shelves, like Mark Baker's. (But
writing books are strictly the province of charlatans.)
The exceptions are John McWhorter, who has the entire rightwing
propaganda machine behind him, and David Crystal, whose books
originate in the UK (and some of which in recent years have been
pretty thin, in both size and content).