I just finished reading the Instant Magento performance optimization howto ebook by Packt and I’m about to write a quick review.
First of all this book is short (50 pages), quick and easy to read. Don’t misunderstand me, for me this is a big plus: Magento is a big universe and for me it’s better to have more specialized books instead of one big book covering everything (which is actually impossible).
Performance are also a big trouble for everyone who works with Magento so anyway this book is a little investment for a nice and complete (also if not very deep) reading (but also a practical manual) on Magento performance overview.
I’d rate this book 7.5/10, as an advanced developer I would have liked more advanced details but probably this should have gone beyond the scope of the book itself so at the end… it’s totally worth its money and most of all it’s a good read for all the kind of Magento workers, from designers to coders to system managers.