After dealing with Analysis and Design of Analog Integrated Circuits in one of my graduate courses, I found reading this book a pleasure. The author develops your intuition in a way that make your grasp the concepts instantly. First he presents the theory in a simple and clear way and then he analyses the different circuit topologies in a pure rigorous way (you need to do some algebra after all) but with clear explanations about the procedure. After that, he presents the same solution to the problem from a different point of view, leaving the algebra aside and making you understand what is going on using an intuitive approach. Finally, and this plays an important role in the book, he persuades you to verify the results using SPICE. But hey, don't think that you need to write the netlist of every example, the author has done that for you! The companion website [...] is an authentic gold mine for students, seriously, he has put a lot of effort into making all the examples available for serveral SPICE simulators like hspice, LTspice, spectre, silvaco, electric... There are even videos and tutorials on how to use these tools. Even more? Yes! If you feel like learning on your own, you can watch all the lectures of the different courses that he taught at Boise University! This website is pricesless! I wish my teachers were 1/10th as good as he is.
The key concepts are repeated over and over through the chapter so you will never feel lost in the middle of a bunch of equations like it has happened to me when reading "Gray & Meyer". If you are looking for a real text book, this is it! You won't regret! If you are looking for another reference to complement this piece of art, don't go for "Grey & Meyer" because it is boring to death ("pain is good!" (sic)), go for Analog Integrated Circuit Design. instead and that is all you need.
I would like to thank the author for all the effort he put in creating the most brilliant book that I've read in CMOS IC design so far. Thank you Jake Baker!