I'r Arweinydd na fu – Rhagair, Dafydd Wigley
To the Leader that never was – Foreword, Dafydd Wigley
Dyn cyn ei amser – bywyd Steffan
A man before his time – The life of Steffan, translated by Cynog Dafis
Ffrind hynod o driw, Stephen Thomas
Gwarchodwr y drws, Aled Edwards
The stubborn but steadfast adviser, Leanne Wood AM
Reflections on the first Assembly term of a first-time Assembly Member, Click on Wales, August 2016
Araith am Hanes Gwent a draddodwyd yn Eisteddfod Genedlaethol y Fenni, Awst 2016
Conference Speech, October 2016
Speech at Pontypridd Constituency Meeting, January 2017
Araith Brwsel, Ionawr 2017 / Brussels Speech, January 2017
Conference Opening Speech, March 2017
Brexit Debate Speech, June 2017
Speech at Mebyon Kernyw Annual Conference, October 2017
Araith Gynhadledd, Hydref 2017 / Conference Speech, October 2017
Speech to introduce Welsh Continuity Bill, Delivered in the Senedd Chamber, January 2018
The young AM trying to make a difference while fighting terminal cancer, Martin Shipton, Western Mail, September 2018
Continuity Act Repeal Speech, November 2018
Gwleidydd a gyffyrddodd â'r gorwel, Elin Jones AC
Cyfweliad Steffan Lewis ar Beti a'i Phobol, BBC Radio Cymru, Rhagfyr 2018
Teyrnged Steffan Lewis gan Jonathan Edwards, cylchgrawn Barn, Ionawr 2019
Liked by all, Carwyn Jones AM
Eulogy to Steffan Lewis by Jocelyn Davies
Teyrnged Adam Price i Steffan Lewis
Er Cof Am Steffan Lewis, Jim Parc Nest
Y fflam na ddiffydd byth / An eternal flame, Annes Glyn
