Book excerpt: This issue of Immunology and Allergy Clinics, guest edited by Drs. Bradley Chipps and Stephen Peters, is devoted to Biologic Therapies of Immunologic Diseases. Articles in this issue include: Immunologic Mechanisms and Potential Targets; Strategies for Immunologic Interventions; Patient Characteristics and Individualization of Therapy; Biologic Therapies for Autoimmune and Connective Tissue Diseases; Biologic Therapies for Skin Disease including Urticaria; Biologic Therapies for Asthma; Biologic Therapies for Rhinitis and Sinusitis; Biologic Therapies for Chronic Obstructive Pulmonary Disease; Biologic Therapies for Food Allergies and Eosinophilic Esophagitis; Future Prospects for Biologic Therapies of Immunologic Diseases; Pharmacoeconomics of Biologic Therapy; and Adverse Reaction to Biologic Therapy.