Have you ever wondered how Room 101 got its name, or what you measure in oktas? Which number links Alice in Wonderland, rainbows and the Egyptian Book of the Dead? You will find the answers in Numbers. The book is full of facts, both mathematical and cultural, tantalising problems and anecdotes. A light-hearted reference book for all ages.

This new edition has been updated with dozens of new articles, illustrations and photographs in full colour. The main entries span the numbers from zero to 200.

Some press comments on the first edition –

“Beautifully and devotedly made, this large thin book is a cheerful and eccentric guide to the integers…” - Philip and Phylis Morrison in Scientific American

“This delightful A4 book is a must for every school library. Beautifully illustrated in full colour…” - Sue Pope in Mathematics Teaching

This edition published in January 2004.

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When you take a photograph, you flatten the world. This remarkable process is called perspective. In a clear, non-technical way, this book provides an introduction to perspective through looking at photographs. It covers practical issues such as what happens when photographs are joined together, and why photographs still look realistic when viewed obliquely. This is a book for anyone interested in perception, photography or geometry.

Published June 2012.

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Problem Pictures is about bringing mathematics to life with photographs. The dazzling images are combined with original questions and problems to challenge students at all levels.

The original Problem Pictures resource has 184 colour photographs with activities for mathematics teaching. Each photograph comes with a question or activity. For each there is a page giving hints, solutions and further information. Initially all the photographs can be viewed as a video montage with a music soundtrack. Themes covered by the pictures include symmetry, ratio, number patterns, spirals, games, packaging, mazes and sundials. Originally published in 2001/2007 as a CD-ROM and now available as a digital download. The current 2022 edition will run on almost any computer or laptop with a web browser.

Problem Pictures Themes has 300 colour photographs. Themes covered include Chocolate, Games & Puzzles, Mazes, Perspective, Time, and Wheels, as well as a large Medley section covering many other topics. U-Shaped Curves, Straight Lines & Gradients and Waves & Other Curves are three sections that can be used to model photographs with graphs. Like the original Problem Pictures resource, this collection contains a varied assortment of attractive and unusual images which are starting points for mathematical activities. The materials are viewed in a web browser making it easy to copy and paste to other applications. First published April 2006.

Problem Pictures Numbers continues the tradition of bringing mathematics to life with photographs. The first part has more than two hundred eye-catching photographs, each with questions and activities to challenge students of all ages and abilities. There are pictures of pedal bins, liquorice allsorts, patchwork quilts and road signs. Weird architecture and historic instruments also appear in the mixture. The second part is on the theme of numbers. There is a page for each whole number from zero up to 220. Photographs show patterns based on particular numbers as well as diverse images of the numbers themselves. The accompanying text is adapted from the book Numbers: Facts, Figures and Fiction, juxtaposing mathematical ideas with facts and anecdotes about numbers in the real world. First published April 2010 as a CD-ROM and now available to download.

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