Amazing! both books are really Amazing! Thank you Steve Souders.
High Performance Web Sites and Even Faster Web Sites are a must-read for all web developers, designers and archeticts.
The books change the way we think about web sites performance as they remove the focus on performance improvement from server side to client side.
I believe both books are very well -structured, rich, focused and contains invaluable information. The way ideas are presented is very logical. Ideas are enriched with simple samples to help understand the points better.
I have really enjoyed reading both of them from the first down to last page. You can finish one over the week end!
If you really want to enrich you front end engineering and web performance knowledge, if you want to be a disitnguised web developer, or if you just want to taste and enjoy the engineering sense in web development, I believe you should read these two great books.