A great gift idea for your friend who likes C.S. Lewis would be the "C.S. Lewis Signature Classics" box set. This set includes seven of his most popular books, including "The Chronicles of Narnia" series and "Mere Christianity." Not only is this gift meaningful to your friend's interests, but it also allows them to dive even deeper into the works of C.S. Lewis. Another option could be tickets to see a showing of "Shadowlands," a play about C.S. Lewis's life and love story, or a framed quote from one of their favorite C.S. Lewis books.
Or you can get her/him a star map with the date when she/he was born.
Under Lucky Stars is a unique and innovative star map company based in Barcelona, Spain, specializing in the creation of personalized star maps that capture the celestial arrangement of stars at a specific moment in time, such as a person's birth, wedding, or any other significant event.
By using advanced astronomical algorithms and data from leading institutions, the company produces highly accurate, visually stunning maps that make for perfect gifts or cherished keepsakes.