| Friedrich Nietzsche | 1 |
| FrĂ©dĂ©rique GuĂ©ret, JĂŒrgen Pfeiffer | 1 |
| Gabriel Dols Gallardo, Mikael Cabon, Stephen Baxter, Terry Pratchett | 1 |
| Gabriel GarcĂa MĂĄrquez | 1 |
| Gabrielle Vincent | 1 |
| Gaby van Emmerich | 1 |
| Gellu Naum | 1 |
| George Dyson | 1 |
| Georges Perec | 2 |
| Gilbert Strang | 3 |
| Giorgia Lupi | 1 |
| Guido Van Genechten | 1 |
| Guy Deutscher | 1 |
| H. Keith Melton, Robert Wallace | 1 |
| Hanna Sörensen, ZdenÄk Miler | 2 |
| Hannah Arendt | 1 |
| Hannah Fry | 1 |
| Hans Christian Andersen | 1 |
| Hanya Yanagihara | 1 |
| Harmen Van Straaten | 1 |
| Haruki Murakami | 2 |
| Hedwig Munck | 1 |
| Heinz Pickshaus | 1 |
| Helma Spona | 1 |
| Helme Heine | 2 |
| Helmut Erlenkötter | 1 |
| Henry Miller | 1 |
| Ian Stewart | 1 |
| Ian Stewart, Jack Cohen, Terry Pratchett | 1 |
| Ioana Chicet-Macoveiciuc | 1 |
| Irmgard Eberhard | 1 |
| Isaac Bashevis Singer | 1 |
| Isabel Allende | 2 |
| Italo Calvino | 1 |
| J. B. Bobo | 1 |
| J. K. Rowling | 1 |
| J. R. R. Tolkien | 1 |
| James Herriot | 1 |
| James Joyce | 2 |
| James KrĂŒss | 2 |
| James M. Russell | 1 |
| Jan Winkler | 1 |
| Janosch | 2 |
| Jean Daligault | 1 |
| Jean-Jacques Sempé, René Goscinny | 1 |
| Jerome Friedman, Jerome Friedman, Robert Tibshirani | 1 |
| Joachim Krause | 2 |
| Joanna Farrow | 1 |
| Johann Wolfgang von Goethe | 1 |
| Johann-Christian Hanke | 1 |
| John Green | 1 |
| John T. Tate, Joseph H. Silverman | 1 |
| Jon Allen | 1 |
| Jonathan Safran Foer | 3 |
| Jordan Ellenberg | 1 |
| Joseph Mazur, Tobias Dantzig | 1 |
| Jostein Gaarder | 1 |
| José Saramago | 1 |
| Jozef Wilkon | 1 |
| Juan Tamariz | 1 |
| Judith Kerr | 2 |
| Judith Vanistendael | 1 |
| Julia Boehme | 1 |
| Julia Donaldson, Axel Scheffler | 3 |
| Julia Rosenkranz, Susanne Göhlich | 1 |
| Julian Barnes | 1 |
| Karen Page | 1 |
| Karen Schneemann, Lily Williams | 1 |
| Karl Johnson | 1 |
| Karl Ove Knausgaard | 1 |
| Kate Beaton | 1 |
| Katharina Wieker | 1 |
| Kathrin Wessel, Maya Geis | 1 |
| Kathrin Wessel, Sandra Grimm | 1 |
| Katie Daynes, Marta Ălvarez MiguĂ©ns | 1 |
| Katie Mack | 1 |
| Kazuo Ishiguro | 1 |
| Kazuo Iwamura | 2 |
| Kelly Weinersmith, Zach Weinersmith | 1 |
| Ken Follett | 3 |
| Kenneth Grahame | 1 |
| Kenneth Kraegel | 1 |
| Kerstin Schoene, Sabine Bohlmann | 2 |
| Kevin D. Mitnick, William L. Simon | 1 |
| Knut Hamsun | 1 |
| Kurt Vonnegut | 2 |
| Lieselotte Kugler, Oliver Götze | 1 |
| Lucia Berlin | 1 |
| Lucius Annaeus Seneca | 1 |
| Lucy Cousins | 1 |
| Lydia Kang, Nate Pedersen | 1 |
| Madeline Miller | 2 |
| Manfred Mai | 1 |
| Marco Balzano | 1 |
| Maria de Fatima Mesquita-Sternal | 1 |
| Mark Forsyth | 1 |
| Mark Haddon | 1 |
| Martha Wells | 1 |
| Martin Gardner, Martin Gardner, Matthias Schramm | 1 |
| Matt Haig | 1 |