Nigel Holland and his ten year old daughter Ellie from Wellingborough are very close.
Both are adventurous, love the outdoors and cooking. Both also have Charcot-Marie-Tooth disease - or CMT - a degenerative muscle-wasting condition, which starts by attacking the hands and feet. The progression of Nigel's CMT means he now uses a wheelchair.
Nigel has always wanted Ellie to know she can still lead a full life despite her CMT. To give her inspiration the pair drew up a list of things for him to do before his 50th birthday - everything from making creme brulee to jet skiing.
In the spirit of things, Nigel even embraced Ellie's suggestion of dying his hair pink.
To Nigel's delight, Ellie has come up with an 11 list to complete by her Birthday in July. You can see Ellie's full list here.
So far she has decorated her own plate, grown strawberries in the garden, and raised £700 for a CMT charity. Next on the list is feeding penguins by hand.
Nigel has now written 'The 50 List' a book about his and Ellie's life, which made it into The Sunday Times best seller list when it was published this February.
He is keen to point out that it wasn't just Ellie but his other children Amy and Matthew and his wife Lisa who helped him with the list - and he says its message is for everyone.