.....if you need one; and more accessible than the Canon manual.
I got this book because I thought its compact size would be preferable to carrying around a printout of the electronic manual supplied with the camera. But whilst the camera and battery weigh a bit over 400g, this book weighs 443g because it's printed on a heavy paper.
I also got this book because the Canon manual does not have a proper index, access to the information it contains is poor, and I have a lot to learn. This book is better than the manual, having an index worthy of the name, a glossary, and extra contents pages at the beginning of each chapter. The pull-out cards just show the camera layout - buttons and functions.
However, unlike the Canon manual, the diagrams of camera layout in this book do not have page reference numbers for the controls and functions illustrated. So, having identified a particular button or function I then have to search for information about it. Most of this can be found either in the glossary or index. But, for example, finding out about the AE/FE lock is not going to be so easy. Whilst AE is defined in the glossary, I could not find an index entry for FE or the lock. I will just have to read through the text in the hope I come across it.
I am sure that once I have found my way to the relevant information I will find The Expanded Guide very helpful.