A lecturer from Diyala College of Medicine writes a book entitled (Helper Book, Auxiliary Book)

The Lecturer Assistant at the College of Medicine, Ahmed Jabbar Muhammad in the Department of Physiology, published a book entitled (Helper Book, the Assistant Book).
The book includes advanced topics in mathematics and mathematical physics taught in universities and solving their examples in simplified and detailed ways. You may not find many of these detailed solutions in references and other educational means that include short solutions. Important laws have also been highlighted in solving the examples and helping the student remember them without referring to the references, and this book is considered a helpful book.