"Tomorrow, and Tomorrow, and Tomorrow" (£14) by Gabrielle Zevin traces the evolution of a friendship from a childhood meeting through growing apart, going into business together, and all the fallout from fame and fortune. Years after losing touch, Sam and Sadie reconnect in college and collaborate on developing video games, launching them to wild success and acclaim. Despite their wealth and success, they are still both ambitious for more and unsure of how to handle their complicated emotions, leading them to decisions that reverberate for decades for themselves and those around them.