Answer Set Programming -- Modelling the Outlier Detection Problem in ASP(Q) -- Multi-Agent Pick and Delivery with Capacities: Action Planning vs Path Finding -- Determining Action Reversibility in STRIPS Using Answer Set Programming with Quantifiers -- Functional Programming -- Functional Programming on Top of SQL Engines -- CircuitFlow: A Domain Specific Language for Dataflow Programming -- Languages, Methods and Tools -- Timed Concurrent Language for Argumentation: an Interleaving Approach -- Towards Dynamic Consistency Checking in Goal-directed Predicate Answer Set Programming -- Implementing Stable-Unstable Semantics with ASPTOOLS and Clingo -- Smart Devices and Large Scale Reasoning via ASP: Tools and Applications -- Declarative Solutions -- Decomposition-based Job-shop Scheduling with Constrained Clustering -- Modeling and Verification of Real-time Systems with the Event Calculus and s(CASP) -- Parallel Declarative Solutions of Sequencing Problems using Multi-valued Decision Diagrams and GPUs -- Green Application Placement in the Cloud-IoT Continuum.

This book constitutes the refereed proceedings of the 24th International Conference on Practical Aspects of Declarative Languages, PADL 2022, held in Philadelphia, PA, USA, during January 17-18, 2022. The 9 full papers and 4 short papers included in this book were carefully reviewed and selected from 22 submissions. They were organized in topical sections as follows: answer set programming; functional programming; languages, methods and tools; and declarative solutions.