Prof. PLO Lumumba has written several books on legal topics including: Criminal Procedure in Kenya, An outline of Judicial Review in Kenya, Kenya’s long search for a Constitution: The Postponed Promise and Judicial Review & Administrative Law. He has also published numerous articles in refereed
His non-legal books include: Swearing by Kenya, A Call for Political Hygiene in Kenya, The Searching Soul, Sanitizing Kenyan Politics, Mhh Africa! in Swahili, Ang’o Marach and Watim Ang’o in his mother tongue Luo.
He has also co-authored thirteen (13) other Books on Integrity as School Series.
He has joined with other writer at Angaza Writer in a bid to transform the way society conducts its daily business more so in areas of good governance, resource mobilization, management and distribution.