Complex sentence: However, this book was not an official position of the Seventh-day Adventist Church, the content of the book has been highly controversial within Adventism from publication until current times, and the book was taken out of print by Adventist publishers in 1963.
Split into simpler sentences: However, this book was not an official position of the Seventh-day Adventist Church. The content of the book has been highly controversial within Adventism from publication until current times, and the book was taken out of print by Adventist publishers in 1963.