However, many students face challenges in accessing textbooks, particularly in South Africa where the educational system is still developing. Some students may not have access to textbooks due to financial constraints, while others may be in schools that do not have sufficient resources to provide textbooks for all students. This is where online resources come in handy, providing students with alternative access to educational materials.

The Olivier series is often praised for its "Theory & Workbook" format, which combines instructional material with active practice in a single volume.

Olivier’s work is structured in three parts: