Education

Many schools across the UK offer tablets to students and these tablets could be placed over images in the book enabling it to provide an AR ‘video’ the student. Infact, AR can be used for almost every subject.
For example,

Geography

Captivate your students with an erupting volcano. Launches a 3D model of a volcano which erupts and then opens into a detailed cross section explaining each element.

Physics

Exploring the solar system has never been so captivating. Explore planets in 360o. Tap into each to learn more. Or even stop off to take a walk on the surface of Mars!

Biology

Grown your own virtual sunflower, a bit like a tamagotchi. You have to answer the plant biology questions correctly to water your plant.

Art

Let your creative juices flow. Colour the butterfly and then see it come to life and flutter around the classroom.AR isn’t just limited to the classroom. For example, teachers could provide a homework sheet with ‘markers’ on them for students to use with their smartphones at home and lab experiments can be practiced at home.

While cost is a running theme when implementing VR, AR and MR, it's an important factor, and in some schools, the most important metric. Once AR materials (books, task sheets, textbooks and more) are set up and the apps and content is made, implementing AR is a pretty cheap option for children with smartphones or schools offering tablets.