There are a number of biographies that deal with Cardijn’s life or periods of his life.
Here is a selection.
Short biographies
Eugene Langdale, Joseph Cardijn (Joseph Cardijn Digital Library)
Joseph M. O’Malley, Canon Joseph Cardijn, The workers’ apostle (Joseph Cardijn Digital Library)
Full length
Marguerite Fiévez and Jacques Meert with Roger Aubert, Joseph Cardijn, His life and times (Joseph Cardijn Digital Library)
Stefan Gigacz, Joseph Cardijn Rediscovered (Joseph Cardijn Digital Library)
Stefan Gigacz, The leaven in the Council, Joseph Cardijn and the jocist network at Vatican II (Australian Cardijn Institute)
Autobiography
Joseph Cardijn, My life (Joseph Cardijn Digital Library)