as far as I know the book "Kartenkuenste" (1910) by Ottokar Fischer was translated 1931 by S.H. Sharpe and is today available as paperback from Dover and as ebook from myself (Lybrary.com). The title is "Hofzinser's Card Conjuring".
Richard Hatch translated the second book by Ottokar Fischer called "Zauberkuenste". This book does not focus on cards but on his other tricks.
There is a large misconception about the rumor that Hofzinser ordered all his tricks and recordings being destroyed after his death. Also we can only speculate about the accuracy about Ottokar Fischer's descriptions. They might be right or wrong, nobody knows. But what is far more important than his handling is his thinking and his advancement of close-up magic in general.
Hope this helps.
preserving magic one book at a time.