Dirk Gently’s Holistic Detective Agency

The Long Dark Tea-Time of the Soul

Douglas Adams

Mostly Harmless

Douglas Adams

Life, the Universe and Everything

Douglas Adams

So long, and thanks for all the fish

Douglas Adams

The Restaurant at the End of the Universe

Douglas Adams

The Hitch Hiker's Guide to the Galaxy

Douglas Adams

Mort

Terry Pratchett

The Colour of Magic

Terry Pratchett

Guards! Guards!

Terry Pratchett

Small Gods

Terry Pratchett

I, Robot

Isaac Asimov

Foundation

Isaac Asimov