‘First Aid Manual’ (11th edition), written and authorised by St John Ambulance, British Red Cross and St. Andrew’s First Aid, published by Dorling Kindersley 2021

Pages 58-61 Breathing and Circulation, Life-Saving Priorities including Agonal breathing (also known as agonal gasps)
Page 63 Child/Infant Resuscitation
Pages 74-81 How to Give CPR Unresponsive Child
Pages 84-85 How to Give CPR Unresponsive Infant
Pages 86-89 How to use an AED
Pages 220 Seizures in children

Your setting may have a copy or you may like to look for it at your local library.