If you were fascinated by the way Easy Travel to Other Planets explores the limits of communication and human understanding (as seen in the relationship between humans and dolphins), you'll be captivated by Solaris. Lem’s classic follows psychologist Kris Kelvin as he tries to make sense of the mysterious planet Solaris, whose ocean manifests physical representations of the crew’s subconscious. The novel delves into philosophical questions about the nature of reality, memory, and the impossibility of true connection with the alien, making it an ideal match for your interests.

If you appreciated the way Easy Travel to Other Planets immerses you in unfamiliar modes of being and communication, you'll love The Left Hand of Darkness. Le Guin transports you to the planet Gethen, where gender is fluid and the customs are radically different from Earth. Through Genly Ai’s attempts to bridge cultural gaps, you’ll find the same sense of wonder and challenge in encountering truly alien perspectives.

If you were moved by the internal struggles of Mooney’s characters—especially the emotional and psychological barriers they face—The Book of Strange New Things will resonate. Peter, a missionary sent to evangelize an alien species on a distant planet, struggles with personal loss, spiritual crisis, and the limits of human connection. Faber’s intense character study and emotional nuance will speak to your appreciation for psychological depth.

If you were drawn to the morally complex relationships and ethical dilemmas in Easy Travel to Other Planets—such as the taboo human-dolphin romance—you’ll be gripped by Never Let Me Go. Ishiguro’s quietly devastating novel follows Kathy, Ruth, and Tommy as they navigate love, jealousy, and complicity within a system that exploits them. The blurred moral boundaries and poignant introspection will echo the ambiguities you enjoyed.

If you admired the layered symbolism and allegorical storytelling in Mooney’s work—where every interaction carries deeper meaning—Riddley Walker will enthrall you. Set in a linguistically fractured, mythic England after nuclear catastrophe, Hoban’s novel uses invented language and rich allegory to probe the reconstruction of meaning and myth. It’s a challenging, rewarding read for anyone who loves allegorical depth.