Five Star Gift Ideas

That's great! Here are some meaningful and personal gift ideas for your grandpa who loves psychology:

1. A book on psychology - you can choose a book on the topic of psychology that he might be interested in, such as "Thinking Fast and Slow" by Daniel Kahneman or "The Psychopath Test" by Jon Ronson.

2. A personalized mug - You can get him a mug with a famous quote from a famous psychologist such as "In the middle of every difficulty lies opportunity" by Albert Einstein.

3. A subscription to a psychology journal - find a latest issue or subscription of a psychology journal. He will love the latest studies and research in the field of psychology.

4. A therapy session - this one may seem obvious, but arranging for him to speak to a therapist for a session could be a unique and interesting gift option.

5. A gift card to an online course - Many websites offer online courses on psychology. This would be a great gift so he can learn more about the subject from the comfort of his home.

Or you can get him a star map with the date when he was born.