"I loved it. A bold, vivid story about humanity and the broader universe. Should we mold the universe to suit us? Or should we mold ourselves to suit the universe? Adrian Tchaikovsky keeps these choices in tension, and kept me riveted to the page." --Ramez Naam, author of Nexus

"A great coming-of-age story that careens through a world so vividly realized that you can feel each insect bite and taste every acrid berry. The Expert System's Brother gives you that visceral eek of satisfaction as its pieces come into view then fit together with exacting precision. It's a smart story, smartly told." --Hugo Award Winner, John Chu

"Tchaikovsky convincingly evokes a world populated with grotesque creatures, rituals, vegetation and mysterious technology that reflects a command of the science fiction genre." --Lincolnshire Life Magazine