Illustrators
- Arkadia 1
- Norman Arlott 15
- Maxwell Armfield 4
- G. Denholm Armour 4
- G.D. Armour 3
- Jenifer Armour 1
- R.C. Armour 1
- Helen Maitland Armstrong 1
- Margaret Armstrong 1
- Robin Armstrong 1
- Sian Armstrong 1
- Barbara Arnason 1
- Ursula Arndt 1
- Enrico Arno 1
- James Arnold 2
- Graeme Arnott 2
- Jose Aruego 1
- Enid Ash 9
- Camilla Ashforth 2
- Malcolm Ashman 5
- Charles Ashmore 1
- Ros Asquith 1
- L. Thomas Atherley 2
- Leslie Atkinson 2
- Mabel Lucie Attwell 90
- Clara E. Atwood 1
- John James Audubon 4
- Steve Augarde 2
- Margaret Aulton 2
- John Austen 1
- Winifred Austen 1
- Cyril F. Austin 1
- Henry Austin 1
- John Austin 1
- Margot Austin 1
- Robert Austin 1
- S. Austin 1
- Rev W. Awdry 1
- Jacqueline Ayer 1
- W.J. Aylward 1
- David Ayres 1
- Michael Ayrton 1
- J.B. Ayto 1
- Robert Ayton 2