The essential pocket guide to the most pervasive principle.

Sacred geometry is one of the oldest subjects on Earth, from the great Pyramid to Gothic Architecture to modern design, certain timeless and universal principles have been studied, contemplated and put to use. This book covers the golden section, two-dimensional grids and more.

In this charming little book Anthony Ashton uses a Victorian device called a Harmonograph to tell the story of Harmony and the intervals in the scale. With useful appendices and exquisite line drawings this is a unique and original introduction to this magical subject.

In this delightful little book, the smallest of its kind ever produced, Dr Betts tells the incredible story of the human body, and how it got to where it is today. With useful appendices and a glossary.

With hand-drawn woodcut-style images, this primer on three-dimensional space takes the reader on a journey into the world of the regular solids, with reference to Plato, Kepler and other famous figures from history who were obsessed with these forms. With detailed appendices, this is a book for specialists and amateurs alike.

The solar system has long been suspected of hiding secret mysterious relationships and patterns. From the earliest known times people have studied the motions of the planets. Now, just when we thought there were no more surprises left, John Martineau introduces the solar system in a new way.

Mathematician Matthew Watkins and illustrator Matt Tweed have compressed almost every familiar equation from mathematics and physics into one tiny book. A quick, fun, stylish reference book with appeal to anyone interested in the sciences.

The ultimate pocket guide.

Sigmund Freud's controversial ideas have penetrated Western culture more deeply than those of any other psychologist. But psychoanalysis was never just a method of treatment, rather a vision of the human condition which has continued to fascinate and provoke long after the death of its originator.

A celebrated genome scientist sails around the world, collecting tens of millions of marine microbes and revolutionising our understanding of the microbiome that sustains us.