Below are some book recommendations that I think you might enjoy. All of these titles have – in one way or another – helped to shape this site. If you're interested in expanding or enriching your appreciation for illustration, art or design then I recommend you check these out.
You can also find versions of this list on Bookshop.org – an online shop that supports local bookstores and allows this site earn a small commission on every book it shares. You can find a UK Store here and a US Store here.
If you have enjoyed a specific essays on this site and would like to read more then some of these books may be of interest:
Funny Bones: Posada and His Day of the Dead Calaveras
Duncan Tonatiuh
🌐 WorldCat / 🇬🇧 UK / 🇺🇸 USA
If you enjoyed: José Guadalupe Posada: Skulls, Skeletons and Macabre Mischief

Toulouse-Lautrec
Matthias Arnold
🌐 WorldCat / 🇬🇧 UK / 🇺🇸 USA
If you enjoyed: A Hedonistic Pilgrimage to the Paris of Toulouse-Lautrec

Steinweiss. The Inventor of the Modern Album Cover
Kevin Reagan & Steven Heller
🌐 WorldCat / 🇬🇧 UK / 🇺🇸 USA
If you enjoyed: Alex Steinweiss and the World's First Record Cover

Making of Pink Floyd’s The Wall
Gerald Scarfe
🌐 WorldCat / 🇬🇧 UK
If you enjoyed: How Gerald Scarfe and Pink Floyd Built 'The Wall'

The Bird Man: The Extraordinary Story of John Gould
Isabella Tree
🌐 WorldCat
If you enjoyed: Swansong of a Bird Man: John Gould’s Ornithological Illustrations

The Bird: The Great Age of Avian Illustration
Philip Kennedy
🌐 WorldCat / 🇬🇧 UK / 🇺🇸 USA
If you enjoyed: Swansong of a Bird Man: John Gould’s Ornithological Illustrations

Bonzo: The Life and Work of George Studdy
Paul Babb & Gay Owen
🌐 WorldCat / 🇬🇧 UK / 🇺🇸 USA
If you enjoyed: George Studdy's Bonzo Bonanza: Tales of a Superstar Dog

The Story of Ferdinand
Munro Leaf & Robert Lawson
🌐 WorldCat / 🇬🇧 UK / 🇺🇸 USA
If you enjoyed: A Subversive Bull: Robert Lawson and The Story of Ferdinand
The Enormous Crocodile
Roald Dahl & Quentin Blake
🌐 WorldCat / 🇬🇧 UK / 🇺🇸 USA
If you enjoyed: Quentin Blake, Roald Dahl and the Enormous Success of a Crocodile

Quentin Blake: In the Theatre of the Imagination
Ghislaine Kenyon
🌐 WorldCat / 🇬🇧 UK / 🇺🇸 USA
If you enjoyed: Quentin Blake, Roald Dahl and the Enormous Success of a Crocodile

Beyond the Page
Quentin Blake
🌐 WorldCat / 🇬🇧 UK
If you enjoyed: Quentin Blake, Roald Dahl and the Enormous Success of a Crocodile

The Passion of a German Artist: Käthe Kollwitz
Klemens von Klemperer
🌐 WorldCat
If you enjoyed: War and Compassion: The Art of Käthe Kollwitz
James Montgomery Flagg
Susan E. Meyer
🌐 WorldCat
If you enjoyed: “I Want YOU!” – The Story of James Montgomery Flagg's Iconic Poster

Recording Britain: A Pictorial Domesday of Pre-war Britain
David Mellor, Gill Saunders & Patrick Wright
🌐 WorldCat / 🇺🇸 USA
If you enjoyed: Illustrating the Lost Landscapes of Pre-war Britain

To the Kwai and Back: War Drawings 1939-1945
Ronald Searle
🌐 WorldCat
If you enjoyed: The War Drawings of Ronald Searle

The Falklands War: A Visual Diary
Linda Kitson
🌐 WorldCat
If you enjoyed: Linda Kitson's Falklands War