Charity campaigner Les Niewiara is putting up a courageous fight against pancreatic cancer.
Despite battling the deadly disease over the past 14 months, the father of two left his hospital bed earlier this year to take part in a gruelling charity bike ride to Poland.
Now back from his epic journey, heroic Les, who lives with wife Sue and daughters Rosa and Immi at their family home in Cunningham Park, Harrow, is as determined as ever to raise more awareness and has published a book detailing his experiences, reflections and hopes as a cancer survivor.
The 48-year-old said: "I have written this to act as a record of what happened to me so that those close to me can remember, particularly Rosa and Immi, who were very young at the time and who have very little recollection of what went on.
"I also want to provide information for those who find themselves in a similar situation, particularly those people diagnosed with pancreatic cancer, but also those diagnosed with any form of the disease."
Les was first diagnosed with the illness in 2004 but was re-diagnosed last year. His account, entitled Bike to the Future, covers the moment he first noticed symptoms, then his diagnosis and through to his chemotherapy treatment and first charity bike ride, from his home town Bolton to Hammersmith, in 2004.
Les, who has already raised £30,000 which will be donated to Pancreatic Cancer UK, said: "Throughout the period of my initial diagnosis and treatment there was a lack of information and patient experiences particularly with regard to pancreatic cancer. I was unable to get answers to simple questions about how I was feeling and what was happening to me.
"The book provides a detailed account of my experiences so that others can have access to this type of information. It also gives details of my first charity bike ride in 2004, which I hope will show others that people diagnosed with cancer or other illnesses can use challenges as an essential part of their recovery process."
Les was also inspired to write the book after reading Lance Armstrong's autobiography, which follows the professional road cyclist's battle against testicular cancer.
He said: "I found great inspiration from reading his autobiography, as well as case studies from other people who have been through the 'cancer mill.'I hope my book might also help others."
Les is hoping to organise more cycling events and already working on his second book. All profits from the sale of Bike to the Future will go to Pancreatic Cancer UK.