Analogue Ic Design The Current Mode Approach (Pb 2012)

Great, came as described and on time.

This is one of those books that you've probably never heard of. You might follow a recommendation like this, or perhaps a colleague at work says it's good. You buy it. Then you start reading it.... and can't stop. Ideas flow off the page. Concepts that you had previously just taken at face value now become clear, and fit together. The clarity and simplicity of the ideas make this book a joy to read.