Dr. Carl Wieland was a founder of Creation Ministries International in Brisbane, Australia and a speaker on the topic of young earth creationism.  In April of 2015, he retired from Creation Ministries International.
Dr. Wieland has authored many articles in both Creation magazine and the associated in-depth Journal of Creation (formerly TJ). In addition, he authored the compact booklet Stones and Bones, and was co-author of The Creation Answers Book, One Blood, and Walking Through Shadows.
Although Dr. Wieland's formal qualifications are in medicine and surgery (from Adelaide University in South Australia), he has not practised in the medical profession since 1986. He is a past president of the Christian Medical Fellowship of South Australia.