Flow cytometry is a fast means of reaching a diagnosis in many cases in hematopathology, and is becoming ever more popular as the front line in clinical practice, interesting even those with no basic training in its techniques. However, it is not always the only component necessary for an answer, so correlation with histomorphology is always welcome and often vital. Key features of this highly illustrated and practical guide include: * comprehensive coverage of the aspects relevant for clinical diagnosis* an explanation of the general parameters useful in diagnosis with flow cytometry* correlation with color histomorphological findings throughout* a systematic approach from basic cases to complicated problem areas* focus on the clinical aspects, not just the technical background or procedural minutiae. All hematopathologists and neoplastic hematologists will find this an important resource for keeping up to date with developments in clinical practice.