Encyclopedia of Go Principles is not an encyclopedia of go principles but a selection of ca. 100 statements, of which some are proverbs, shape advice, principles. If it were an encyclopedia of go principles, it would include, e.g., the greater number of principles in Joseki 2 - Strategy, which describes quite a few more strategic concepts than Strategic Concepts of Go.

The name of First Fundamentals is its program: its principles are basic. If your rank description is accurate, the book might be too easy for you.

Encyclopedia of Go Principles, First Fundamentals and Strategic Concepts of Go have very little in common.

The joseki chapter of Fundamental Principles of Go amounts to a partial selection of principles in a part of Joseki 1 - Fundamentals.

Encyclopaedia of Go Principles attempts to tie Go proverbs of strategic or tactical value, to a set of generic principles. The problem with this of course is that a) this set is incomplete and b) the devil is in the contradiction. But it's an easy read.

First Fundamentals is more complete (principle-wise) and requires more effort just because it's more exhaustive and doesn't attempt to genericise principles.

I've found the former great for some bed time reading and the latter great for when I want to improve.

There's also this post, which has a list of reviews by members here.

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Patience, grasshopper.

Thanks this was helpful. So no one has reviewed the Joseki Vol. 3 Dictionary? I'm curious how it would compare to 21st Century Dictionary of Basic Joseki.

There is my self-review: http://senseis.xmp.net/?JosekiVolume3Dictionary
If you consider learning josekis, you might consider the alternative
http://senseis.xmp.net/?EasyLearningJoseki
Simply speaking, the latter is for learning the first 72 josekis, the former is for expanding a first joseki knowledge to 400 josekis.

EDIT:

Joseki 3 - Dictionary also explains strategic decisions and joseki evaluation while 21st Century Dictionary of Basic Joseki hardly does either. For the major, dictionary part of Joseki 3 - Dictionary, you can compare the samples for both book (series). Unfortunately, I am only aware of samples of the German edition of 21st Century Dictionary of Basic Joseki; I do not know if the publisher of the English edition has provided any sample.

http://home.snafu.de/jasiek/Joseki_3_Sample.pdf

http://www.brett-und-stein.de/download/ ... seiten.pdf
http://www.brett-und-stein.de/download/ ... seiten.pdf
http://www.brett-und-stein.de/download/ ... seiten.pdf