This book covers the fundamentals, experimental procedures, and applications of dried blood spot (DBS) sampling in combination with various qualitative and quantitative analytical techniques. This includes sample collection, storage, transportation, and sample preparation for various analysis. Experimental examples in newborn screening, toxicokinetics and pharmacokinetics, and forensics are also given. Finally, the book provides an overview of trends in quantitative and qualitative analysis of DBS samples as well as future perspectives. This provides a valuable working guide to researchers, professionals, and students in healthcare, medical science, diagnosis, chemistry, and pharmaceuticals.