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Continue to ChatJan van der Heyden and his firefighting book https://graphicarts.princeton.edu/2015/01/30/jan-van-der-heyden-and-his-firefighting-book/
Jan van der Heyden and his firefighting book https://graphicarts.princeton.edu/2015/01/30/jan-van-der-heyden-and-his-firefighting-book/