Mindful Physics is an interactive electronic book of over 600 pages, available from Apple's iBooks and iTunes Stores. It runs on Apple computers, iPads, iPhones and on other computers with iTunes. The price is about US$10, varying a bit from country to country. You can read sample material or buy a copy at this Apple iBooks page.
Mindful Physics is currently off-market outside Australia, pending completion of a new edition.
eBooks by Desmond Sander