This book - Patent Law: Fundamentals of Doctrine and Policy (Carolina Academic Press) - does a great job of using cases to illustrate key points, but often provides descriptive text and problems, and does so in a practical and concise way, and a way geared toward current learning trends.
with respect to its organization, the authors use the funnel approach for many subjects, starting broad (a patent gives a negative right to exclude) and then narrowing (the right to exclude is measured by the claims). It also uses spaced repetition (those two subjects are chapters apart but mentioned in both places), and includes self-assessment questions after each chapter.
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