The book provides a brief overview of the immune system, including antibodies, antigens, and their interactions. The bulk of the book is comprised of 16 chapters that each explain different serological tests. These chapters start with a general introduction of the test or disease being detected, followed by the test principle, reagents required for the test, procedures and steps to perform the test, and, finally, result interpretation. Both test principles and result interpretation segments include illustrations to aid comprehension. In addition, the book also enables the reader to distinguish between positive and negative results in serological testing.