Incredibly thorough on Western history, but as a teacher of primarily Black and brown students I feel it's light on indigenous and modern BIPOC designers and influences. Consider expanding this in the next edition.
I been using this book in my graphic design school. Everything in it well explained and with illustrations. On my opinion this is the best graphic design history book which exist nowadays. If you are student, don't hesitate to read it.
Thorough and expansive, not much can be said about this that hasn't been already. There's a reason it's the staple of every graphic design course's reading lists. A must for students.