I was interested in this book because of discussions of political theory that seem to relate to current trends in U.S. Positive vs Negative liberty. Definitions of freedom, equality and liberty, and how to balance liberty and equality, freedom and security, minority rights with democracy in pluralistic populations. Lots on ideology, values and nationalism.
This is the kind of book that allows me to get my head around a new, complex subject--like science or in this case, political philosophy. It's a written record of a tribute event to Isaiah Berlin, an anthology, consisting of essays on various subjects, with each ending in a transcript of discussion amongst the contributors and the panel discussion.
Dworkin was my original author of interest, but the book I checked out written by him (Sovereign Virtue) was tedious, ponderous, and out of date.
This book has all the lingo, definitions and histories of the type of friction we see a lot nowadays in 'pluralistic' democracies (some of which are cited by U.S. Republicans---good to know it isn't insanity behind their politics, just a different interpretation of negative freedom!) Issues such as the gun debate pitting freedom from getting shot against the freedom to buy and carry a gun of whatever type, wherever you want, or freedom to practice a religion that obligates you to try to get laws passed legislating your religion--or violate laws when they conflict with it.
A bonus is the last subject addressed, and that is Berlin's support for Zionism, even though he did not, in theory think nationalism was a good idea. Philosophy certainly isn't ponderous when it meets real life--real, as in concentration camps and death. The contributors who spoke from personal experience 'kept it real,' and the examination of Berlin is an excellent lens into the cognitive dissonance even the greatest thinkers experience when it's their lives and skin and families on the line. Also, the transcripts of various authors arguing their points with each other were refreshingly civil.