The publishers have made every effort to trace and acknowledge copyright holders. We apologize for any omission and will welcome amendments.

s.4-5 Kim Svarer, Lotte Nybo

s.6-7 Kim Svarer

s.8-9 colourbox, cgpgrey.com, iStock: godrick, iStock: coward_lion

s.10-11 iStock: xeipe, iStock/ Vladislav Zolotov, unsplash: Pauline Loroy, Colourbox, iStock/ Vladimir vinogradov, Madame Tussaud’s, Unsplash: paolo antonini

s.12-13 iStock/ jaroslaw kilian, unsplash/ Arthur osipyan, colourbox

s.14-16 Lotte Nybo

s.17 colourbox, iStock: Mychko Alezander, iStock:lily_rochha

s.18-19 iStock: Rixipix, iStock: fsamora, Colourbox, Julie Svarre

s.20-21 iStock: Raylipscombe, Colourbox

s.22-27 Claus Rye Schierbeck

s.28-31 Kim Svarer

s.32-35 Lotte Nybo

s.36-41 Claus Rye Schierbeck

s.42-45 Kim Svarer

s.46-47 Colourbox

s.48 Kim Svarer

s.49 Abingdon School

s.50 iStock: krzych-34

s.51 Abingdon School

s.52 iStock: SolStock

s.53-55 Claus Rye Schierbeck

s.56 Lotte Nybo

s.57 Kim Svarer

s.58-59 Kim Svarer, Lotte Nybo

s.60-61 Unsplash: alejandro-barba, Unsplash: brian-erickson, Unsplash: l-link, Colourbox, Smithsonian’s National Air and Space Museum

s. 62 -63 Flickr: Andrea Hanks, Flickr: Joyce N. Boghosian

s. 64-69 Lotte Nybo

s. 70-71 iStock: grandriver, iStock: InkkStudios, iStock: UserGI15632746

s. 72-74 Lotte Nybo

s. 75-78 Kim Svarer

s. 79-81 Lotte Nybo

s. 82-83 colourbox, frog.pond@scboston.org

s.84-85 Lotte Nybo

s. 86-89 Claus Rye Schierbeck

s. 90-91 colourbox, iStock: omgimages, iStock: olesiabilkei, iStock: Imgorthand, iStock: filmstudio, iStock: SerrNovik

s. 92-95 Lotte Nybo