Answer :
The two types of publications are, Periodicals and Academic books
Publications are the printing and distribution, usually for sale, of books, magazines, newspapers, etc.
Periodicals;
Periodicals are publications that appear on a regular basis (monthly, quarterly, daily, etc.) Current information can be found in periodicals, which is particularly useful in disciplines like science, business, psychology, and technology.
Academic Books;
One definition of the academic book is that it is a long-form publication as opposed to a short-form publication like an essay and is the outcome of extensive academic research that typically takes years to complete while providing a unique contribution to a field of study.
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