Honeymoon to Business , what a trip!

In 1972 Tony & Maureen Wheel got married and decided to go on an adventure trip for they honeymoon . They visited London and France and when done with it wanted to extend their travel by visiting Iran, Iraq , Afghanistan, Pakistan and India overland. When they arrived back in London, their eager friends would ask the stories of their travel. After many such party stories, on the urging of their friends they began to share pictures, recommendations for restaurants , boarding and even places to visit.

To avoid bankruptcy (due to travels) they began documenting small essays on their travel and began selling them to would-be travellers. What did these essays culminate in and how is presented to us today?