A special Northern Ireland centenary edition of a book of devotional readings from the notebooks of the late Lord Bannside and his father James Kyle Paisley has sold more than two-thirds of its 1,000-strong print run within a few weeks.
Paisley Pattern has been produced in hardback by the Paisley family in association with the Lord Bannside Foundation and Bannside Library.
It costs £20, with the proceeds going to the library.
Baroness Eileen Paisley, widow of the late Ian Paisley, who died on September 12, 2014, said the book was "very much a family effort".
"My daughter Rhonda edited all the notes and put the book together and my daughter Cherith set it up for the printers," she said.
"I did the proof-reading and this was checked by my daughter Cherith.
"It was very much a family effort.
"The material in the book has not been made public until now.
"Working on the book brought back many happy memories, although it reminded us how much we miss our loved ones.
"My husband Ian and his father were very close, and my father-in-law stayed with us often.
"He was very fond of the children."
The book has been published on the eve of the centenary year "in tribute to the spiritual contribution made to the Province" by Lord Bannside and his father.
There is a devotional reading for each day of the year, and the writings of Rev Paisley and his father are listed month about.
Baroness Paisley, who has just turned 89, wrote in the foreword: "The Gospel campaign organised by my father-in-law in Ballymena in 1950, at which Ian was the preacher, was a time of outstanding revival power in that town.
"My husband's ministry was peppered by the Gospel missions he held across the Province.
"Many of these meetings were in tents or barns, and ran for several weeks - as long as people came and God worked, they continued.
"Whole communities were touched by the grace of God.
"There was no one more encouraging to Ian in all that he did than his father.
"In this book we have placed their writings alongside one another, and I have no doubt that the reader will be struck by their similarities."
James Kyle Paisley was born in Kilcam, Co Tyrone, in 1891 and served with Lord Carson's Ulster Volunteers, the unionist militia founded in 1912 to block Home Rule.
He later became an Army chaplain in Armagh.
Ian Richard Kyle Paisley was born in Armagh on April 6, 1926 and his ministry lasted from 1946-2011.
He married Eileen Cassells on October 13, 1956.
She became a life peer in 2006 and retired from the Lords in 2017.
Ian Paisley was leader of the DUP from 1971-2008, and was First Minister of Northern Ireland from May 8, 2007 until June 5, 2008.
Following his retirement he accepted a life peerage in the House of Lords, a position he held from July 2010 until his death.
He also served as an MP at Westminster and as a Member of the European Parliament in Strasbourg.