"A “documentary biography” by Kurt and Herta Blaukopf, this excellent – and eminently readable – book uses correspondence and documents to tell the Mahler story. The “best if you’re having only one.”"
"Constantin Floros’ detailed – but not-too-technical – descriptions of the musicology of all of Mahler’s symphonies (includiing “Das Lied von der Erde” and the unfinished 10th) is a “must.”"
"Theodor W. Adorno’s analysis of Mahler’s “musical physiognomy” is tough sledding; not an easy read. (I’m now on my fourth or fifth swing through it.) But the rewards are immeasurably insightful."
"Henry-Louis de La Grange’s projected English-translation 4-volume tome on the life and music of Mahler is epic in scope. Volume III sets out the musical and artistic reasons for his greatness."
"Almost as important as the above four books, “The Mahler Companion” is a thought-provoking set of essays on all things “Mahlerania,” beginning with a comprehensive view of fin-de-siècle Vienna."
"Newly issued (September, 2002) as a Festschrift for the Bard Music Festival honoring Mahler, this collection of essays and memorabilia provides an updated perspective on the man and the music."