"Circulating Tumor Cells, from biotech innovation to clinical utility" provides an overview of the most recent technological and clinical advances with regards to the study of circulating tumor cells (CTCs) in solid tumors. The volumes cover studies on CTCs in breast, prostate, colorectal and lung cancer, with a focus on clinical utility, and also include methodological and biological topics such as CTC culture, multi-omic characterization of CTCs, atypical CTC populations and interaction between CTCs and immunity.