This issue of Hematology/Oncology Clinics, edited by Dr. Colin A. Sieff, will focus on Bone Marrow Failure. Topics include, but are not limited to, Acquired and Inherited Bone Marrow Failure; Kickapoo Joy Juice and Somatic Mutations in the Pathogenesis of AA; Somatic Mutations in Aplastic Anemia; Recent Advances and Long-term Results of Medical Treatment of AA; Upfront Matched Unrelated Donor Transplantation in AA; Significance of Clonal Mutations in the Diagnosis and Management of Myelodysplastic Syndrome; Alternate (Haploidental) Donor Transplantation in AA; Management of Diamond Blackfan Anemia and Prospects for Novel Treatment; MDS, AML and Cancer Surveillance in Fanconi Anemia; Diagnosis, Treatment and Molecular Pathology of Shwachman Diamond Syndrome; Clinical Implications of Clonal Hematopoiesis in Dyskeratosis congenita; and Germline GATA2 Mutations and Bone Marrow Failure.