I love Hitchhiker's Guide to the Galaxy. My dad read some of Douglas Adams to me at 13, and I can confidently say that by the time I had finished reading Adams's complete works I knew and was more of a geek about him than my dad was. I have one or two friends who like the Guide, and I am always looking for other interesting things to read. I read some humour fantasy like Discworld by Pratchett. I have seen most of Red Dwarf. I highly recommend this interesting collection of stories Calahan's Cross Time Saloon, Spider Robinson. Another writer I like is Rob Reid, but he currently only has two novels both of which I liked, After On, and Year Zero. A series I read the first book of so far is called Space Team Barry J Hutchison; where the inciting incident is that a con artist and thief gets mistaken for his cannibal serial killer cell mate by aliens and gets taken to space and goes on criminal adventures. I hope you like my recommendations and feel free to share yours!