Development economics & emerging economies 682 Development studies 508 Disability: social aspects 141 Diplomacy 138 Defence strategy, planning & research 117 Demonstrations & protest movements 96 Digital lifestyle 88 Databases 84 Diaries, letters & journals 83 Dance & other performing arts 78 Discourse analysis 78 Data mining 76 Dietetics & nutrition 76 Dentistry 67 Dutch 60 Diseases & disorders 56 Dermatology 54 Dance 44 Dictionaries 44 Distribution & warehousing management 40 Differential calculus & equations 37 Dialect, slang & jargon 34 Data analysis: general 29 Database design & theory 28 Disability & the law 28 Developmental biology 22 Data capture & analysis 20 Dictionaries of biography (Who's Who) 19 DSB 18 Discrete mathematics 18 Drugs trade / drug trafficking 16 Data protection law 15 Documentary films 15 Deltas, estuaries, coastal regions 14 Designed for differentiated learning 13 Decorative arts 12 Designed / suitable for A & AS Level 12 Diets & dieting 12 Digital TV & media centres: consumer/user guides 12 Drawing & drawings 11 Developing countries 10 Digital video: professional 10 Dynamics & statics 9 Differential & Riemannian geometry 8 Domestic violence 8 Drought & water supply 7 Dairy farming 6 Dating, relationships, living together & marriage 6 Distributed systems 6 Distributive industries 6 Doctor/patient relationship 6 Drug & substance abuse: social aspects 6 Drug-induced states 6 Dynamics & vibration 6 Deconstructionism, Structuralism, Post-structuralism 5 Discrimination in employment law 5 Dams & reservoirs 4 Designed / suitable for other (non-UK) curricula & examinations 4 Designs law 4 Data encryption 3 Democratic Republic of Congo (Zaire) 3 Diabetes 3 Disability sports 3 D (Literature and literary studies) 2 D, GTR 2 Databases & the Web 2 Decision theory: general 2 Decorative wood & metalwork 2 Denmark 2 Designed / suitable for South African examinations & educational levels 2 Devon 2 Dictionaries of quotations 2 Digital animation 2 Digital music: professional 2 Digital photography: consumer/user guides 2 Digital video: consumer/user guides 2 Diplomatic law 2 Dreams & their interpretation 2 DBS 1 DC 1 DNA & Genome 1 DNF 1 DS 1 DS (Literature: history and criticism) 1 DSB (Literary studies: general) 1 DSBF (Literary studies: c. 1800 to c. 1900) 1 DSBH 1 DSK 1 Damages & compensation 1 Dog obedience & training 1 Domestic trade 1 D，GTR 1