Contains refereed papers dedicated to Philip Wadler and to his work

Collects a number of papers by Philip's collaborators over the years presenting

a broad range of topics reflecting Philip's versatility

Depicts Phil's major contributions to programming language design, in particular
contributing to functional programming and the theory underpinning functional
languages, as well as his major contributions to type systems for programming
languages and logic

Includes supplementary material: [...]

Reactions on Monadic Lenses.- Conation Confers
Concurrency.- Counting Successes: Effects and Transformations for Non-deterministic
Programs.- The Essence of Inheritance.- Subtyping Supports Safe Session Substitution.-
Proof Relevant Parametricity.- Comprehending Ringads.- Dragging Proofs out of
Pictures.- Experiences with QuickCheck: Testing the Hard Stuff and Staying
Sane.- Cutting out Continuations.- The Lambda Calculus: Practice and
Principle.- I Got Plenty o' Nuttin'.- Pointlessness Is Better than Listlessness.-
The Essence of Dependent Object Types.- Linear lambda-mu Is CP (more or less).-
A Reaction on types.- The Essence of Multi-Stage Evaluation in LMS.- 1ML with
Special Effects.- The Computer Scientist Nightmare.- A Branding Strategy for
Business Types.- The Recursive Union of Some Gradual Types.- A Delta for Hybrid
Type Checking.- Certifying Data in Multiparty Session Types.- Recursion Equations
as a Programming Language.