Essentials are written with one aim to get students through their exams. The concise, readable texts avoid the complexities of many textbooks, and are written to give students a thorough understanding of the important principles of each subject. There are copious references to recent cases, legislation and academic articles so the student can quote up to date examples in their exams.

The books all pay particular attention not only to those topics that figure most prominently in examinations, but also to the topics that students are known to find particularly difficult.