“Niven and Cooper have crafted a multigenerational, star-spanning epic with intriguing, fast-paced action. Against a backdrop of mind-boggling technology, the authors ask important questions about how far science should go and its impact on social structures and human rights. Niven and Cooper are playing God on a grand scale.”

“Fans of both hard and softer, psychological SF will welcome veteran Niven and newcomer Cooper’s well-written tale…Niven and Cooper provide complicated characters, particularly the AI, which struggle with realistic moral dilemmas.”

“Exploiting Niven’s classic flare for world building, he and Cooper craft an entertaining epic with subtexts concerning cultural obsessiveness and the fear and worship of science.”

“Recent astronomy hints at a beautiful but stark vision of the solar systems around us. Building Harlequin’s Moon is the best fiction I’ve seen based on this vision.”

“Larry Niven and Brenda Cooper’s colonization novel is a hugely ambitious, meticulously rendered feast for both head and heart. I can’t wait to see what they do next!”

“Larry Niven and Brenda Cooper have accomplished that most difficult of tasks, a novel full of real, hard science but character-driven from the first page. The scope is enormous, but the focus is intimate, with characters who live and breathe. A marvelous read!”

“Building Harlequin’s Moon is a big tale, well told. Wonderful world-building and characters you can care about.”