"There is no doubt that the volume will be of immense importance for all interested in modern topology and/or Bott's legacy." -- Zentralblatt für Mathematik (Review of Vol. 1)
"Each reader will certainly profit from Bott's elegant style and engagement with the central problems of the subject and time." -- Mathematical Reviews (review of Vol. 1)
"The volume (along with the three other volumes) is highly recommended to any mathematical library, institutional as well as individual..." -- Mathematical Reviews (Review of Vol. 2)
"The volume will be indispensible in every topological library." -- Zentralblatt für Mathematik (Review of Vol. 3)