Website design optimisation and testing books Since I wrote my first book on web marketing 10 years ago, success in online marketing has required an ever more detailed approach as the discpline matures. Specialist books on search engine optimization have been established for many years, but in 2008 we saw several new books on landing page optimisation to improve web design and messaging of which these are the two "must-haves" IMO. I recommend Bryan Eisenberg's book if you work for a small-medium business and are planning on using Google Analytics for testing your sites. I recommend Tim Ash's book if you work for a larger business and want to audit your existing testing approach or are starting to plan a website testing programme. Before we get to the two main reviews, I also recommend: [amazon-product text="Brian Clifton's book on Google Analytics" type="text"]/0470253126[/amazon-product] particularly if you are personally involved with configuration,  or want to know how to use…

Many companies are now turning to Multivariate and AB Testing to meet their goals, typically increased conversion rates or revenue per visit. Use of multivariate and AB testing is certainly going to increase with the Google Website Optimizer recently coming out of beta (see below). To find out more about best practice and future trends in these testing techniques I recently talked to Mark Simpson, Managing Director of Maxymiser, a UK-based supplier of advanced Multivariate testing tools. So, straight to the interview with Mark, MD of Maxymiser. You can read more from Mark on approaches to structured testing and experiments on the Maxymiser blog. This month there is also a great case study out of how Lovefilm uses structured testing to improve it's results .

Principles and differences between AB and multivariate…