Casia Wiliam is a former Bardd Plant Cymru and author of multiple books for this age group. She won the 2021 Welsh-language Primary Tir na n-Og award for Sw Sara Mai (Y Lolfa), and was shortlisted again the following year for Sara Mai a Lleidr y Neidr (Y Lolfa). She has been particularly commended for her sensitive treatment of issues of race and identity.
