Comics

DC Comics

• Lazarus Planet: Assault on Krypton #1 (back-up story, illustrated by Marguerite Sauvage, January 2023)^[1]
  • Collected in Power Girl Returns (trade paperback, 88 pages, 2023, ISBN 978-1779524072)
• Action Comics #1051–1053 (back-up story, illustrated by Marguerite Sauvage, January–March 2023)
  • Collected in Power Girl Returns
• Power Girl Special #1 (illustrated by Marguerite Sauvage, May 2023)^[2]
  • Collected in Power Girl Returns
• Power Girl (vol. 3) #1–present (illustrated by Eduardo Pansica, September 2023–present)^[3]
  • Collected in Power Girl – Volume 1: Electric Dreams (#1–7, trade paperback, 144 pages, 2024, ISBN 978-1779528148)
• Gotham City Sirens (vol. 2) #1–4 (illustrated by Matteo Lolli, Daniel Hillyard, Brandt & Stein, August 2024)^[4]

IDW Publishing

• The Addams Family: Charlatan's Web #1–2 (co-written with Chynna Clugston Flores, illustrated by Juan Samu, December 2023–January 2024)

Marvel Comics

• X-Men Gold Annual #1 (co-written with Marc Guggenheim, illustrated by Alitha Martinez, January 2018)^[5]
  • Collected in X-Men Gold – Volume 7: Godwar (trade paperback, 136 pages, 2018, ISBN 978-1302909772)
• Age of X-Man: X-Tremists #1–5 (illustrated by Georges Jeanty, February–June 2019)^[6]
  • Collected in Age Of X-Man: X-Tremists (trade paperback, 113 pages, 2019, ISBN 978-1302915780)
• Gwenpool Strikes Back #1–5 (illustrated by David Baldeón, August–December 2019)^[7]
  • Collected in Gwenpool Strikes Back (trade paperback, 112 pages, 2020, ISBN 978-1302919238)
• Amazing Mary Jane #1–6 (illustrated by Carlos Gómez, Lucas Werneck & Zé Carlos, October 2019–March 2020)^[8]
  • Collected in Amazing Mary Jane: Down in Flames, Up in Smoke (#1–5, trade paperback, 112 pages, 2020, ISBN 978-1302920272)
• Doctor Strange: The End #1 (illustrated by Filipe Andrade, January 2020)^[9]
  • Collected in The End (trade paperback, 232 pages, 2020, ISBN 978-1302924997)
• X-Factor (vol. 4) #1–10 (illustrated by David Baldeón & Carlos Gómez, July 2020–June 2021)^[10]
  • Collected in X-Factor by Leah Williams – Volume 1 (#1–3, 5, trade paperback, 144 pages, 2020, ISBN 978-1302921842)
  • Collected in X of Swords (#4, trade paperback, 720 pages, 2021, ISBN 978-1302927172)
  • Collected in X-Factor by Leah Williams – Volume 2 (#6–10, trade paperback, 136 pages, 2021, ISBN 978-1302921859)
• X-Men: The Trial of Magneto #1–5 (illustrated by Lucas Werneck, August–December 2021)^[11]
  • Collected in X-Men: The Trial of Magneto (trade paperback, 152 pages, 2022, ISBN 978-1302932176)
• X-Terminators (vol. 2) #1–5 (illustrated by Carlos Gómez, September 2022–January 2023)^[12]
  • Collected in X-Terminators (trade paperback, 120 pages, 2023, ISBN 978-1302946999)

• 2021 GLAAD Media Award for Outstanding Comic Book — X-Factor (Marvel Comics) — Nomination^[13]