For beginners, 'A Wrinkle in Time' by Madeleine L'Engle is a great choice. It has a young protagonist and a story full of adventure and mystery in a science - fictional universe. 'The War of the Worlds' by H.G. Wells is also accessible. It tells the story of a Martian invasion of Earth in a vivid and somewhat terrifying way. And 'Do Androids Dream of Electric Sheep?' by Philip K. Dick is a good one too. It deals with the question of what it means to be human in a world of androids.
Sure. 'The Time Machine' by H.G. Wells is a good start. It's an easy - to - read classic that explores time travel. Another is 'Fahrenheit 451' by Ray Bradbury. It has a simple yet powerful story about a society that bans books. 'I, Robot' by Isaac Asimov is also suitable for beginners. It has short, engaging stories about robots and their relationship with humans.