The Welsh Government provides a publication 'Birth to Five' free to parents in Wales.
It is based on the Department of Health publication which has been revised and updated for Wales, and is bilingual. 'Birth to Five' includes information on:
Welsh Government - Birth to Five
Practical advice on becoming a parent, taking care of yourself and your child and finding practical help and support
Birth to Five Publication
(The following links will take you straight to the relevant section of the publication)