I was organising my bookshelves yesterday and thought it might be fun to make a list of the zoo or zoo-related books I own (yes I know, its anal; but there's a zoo list thread on here so why not a zoo book list thread). Anyway, I tend to buy most of my books from second-hand shops so the majority of my zoo ones are old ones from the 60s and 70s. I've ordered them by publication date because that seemed easier than by author or country.
1) "Little Arthur At the Zoo, And the Animals he Saw There", Mary Seymour (1887) [about London Zoo]
2) "Whipsnade", Philip Street (1953)
3) "The Bafut Beagles", Gerald Durrell (1954)
4) "The London Zoo", Philip Street (1956)
5) "Zoo Quest To Guiana", David Attenborough (1956)
6) "Zoo Quest For A Dragon", David Attenborough (1957)
7) "Quest In Paradise", David Attenborough (1960)
8) "A Zoo In My Luggage", Gerald Durrell (1960)
9) "London Zoo" Erich Tylinek [no date; probably before 1960]
10) "The International Zoo Yearbook, vol 6 (1966)
11) "Beasts In My Bed", Jacquie Durrell (1967)
12) "Zoos", Emily Hahn (1968)
13) "The World Of Zoos", Dr. Rosl Kirchshofer (1968 English edition)
14) "The World's A Zoo", John Perry (1969)
15) "The Lions Of Longleat", The Marquess Of Bath and Jimmy Chipperfield (1969)
16) "Zoo Without Bars", June Johns (1969) [Chester Zoo]
17) "The Rape Of Noah's Ark", James Dewar (1969)
18) "Man And Animal In The Zoo: Zoo Biology", Heini Hediger (1969 English edition)
19) "The Penguin Guide To British Zoos", Geoffrey Schomberg (1970)
20) "Lions On The Lawn", Mary Chipperfield (1971) [Longleat]
21) "Catch Me A Colobus", Gerald Durrell (1972)
22) "Zoo", Joan Crammond (1972)
23) "Animals As Friends: a head keeper remembers London Zoo", James Alldis (1973)
24) "Zoo Doctor", Oliver Graham-Jones (1973) [London Zoo]
25) "Gathering Of Animals", William Bridges (1974) [Bronx Zoo history]
26) "Zoovet", David Taylor (1976)
27) "The Ark In The Park: the Zoo in the nineteenth century", Wilfrid Blunt (1976) [London Zoo]
28) "Penguin Millionaire: the story of Birdland", Len Hill and Emma Wood (1976)
29) "Animals On View", Anthony Smith (1977) [guide to British collections]
30) "Zoos In The Making", Dorothy E. Shuttleworth (1977)
31) "Golden Bats And Pink Pigeons", Gerald Durrell (1977)
32) "Ruffled Feathers", Iain Grahame (1978) [about Daws Hall in Suffolk]
33) "The Animal Connection: the confessions of an ex-wild animal trafficker", Jean-Yves Domalain (1978 English edition)
34) "The Last Great Wild Beast Show: a discussion on the failure of British animal collections", Bill Jordan and Stefan Ormrod (1978)
35) "Lifeboats To Ararat", Sheldon Campbell (1978)
36) "Behaviour Of Captive Wild Animals", Hal Markowitz and Victor J. Stevens (editors) (1978)
37) "The Zoo", Dr. Peter Crowcroft (1978)
38) "A Zoo For All Seasons", Alfred Meyer (editor) (1979) [National Zoo, Washington DC]
39) "Chimps With Everything: the story of Twycross Zoo", Molly Badham (1979)
40) "My Jungle Babies", Rosamund Fisher (1979) [Kilverstone]
41) "Next Panda Please", David Taylor (1982)
42) "Some Of My Best Friends Are Animals", Michael Willis (1982) [Willowbank Wildlife Reserve, NZ]
43) "Zoo 2000: a look beyond the bars", Jeremy Cherfas (1984)
44) "Among The Animals: a zookeeper's story", Noel Virtue (1988)
45) "The Passion Of John Aspinall", Brian Masters (1988)
46) "A Tiger By The Tail", Derek Wood (1992) [Auckland Zoo history]
47) "Gerald Durrell's Army", Edward Whitley (1992)
48) "The Aye-Aye And I", Gerald Durrell (1992)
49) "Jambo: a gorilla's story", Richard Johnstone-Scott (1995)
50) "Himself And Other Animals: a portrait of Gerald Durrell", David Hughes (1997)
51) "Gerald Durrell: the authorised biography", Douglas Botting (1999)
52) "Zoo Tails", Oliver Graham-Jones (2001) [London Zoo]
53) "Postcards From The Zoo", Darill Clements (2002) [Taronga Zoo]
54)"Animal Attractions: nature on display in American zoos", Elizabeth Hanson (2002)
1) "Little Arthur At the Zoo, And the Animals he Saw There", Mary Seymour (1887) [about London Zoo]
2) "Whipsnade", Philip Street (1953)
3) "The Bafut Beagles", Gerald Durrell (1954)
4) "The London Zoo", Philip Street (1956)
5) "Zoo Quest To Guiana", David Attenborough (1956)
6) "Zoo Quest For A Dragon", David Attenborough (1957)
7) "Quest In Paradise", David Attenborough (1960)
8) "A Zoo In My Luggage", Gerald Durrell (1960)
9) "London Zoo" Erich Tylinek [no date; probably before 1960]
10) "The International Zoo Yearbook, vol 6 (1966)
11) "Beasts In My Bed", Jacquie Durrell (1967)
12) "Zoos", Emily Hahn (1968)
13) "The World Of Zoos", Dr. Rosl Kirchshofer (1968 English edition)
14) "The World's A Zoo", John Perry (1969)
15) "The Lions Of Longleat", The Marquess Of Bath and Jimmy Chipperfield (1969)
16) "Zoo Without Bars", June Johns (1969) [Chester Zoo]
17) "The Rape Of Noah's Ark", James Dewar (1969)
18) "Man And Animal In The Zoo: Zoo Biology", Heini Hediger (1969 English edition)
19) "The Penguin Guide To British Zoos", Geoffrey Schomberg (1970)
20) "Lions On The Lawn", Mary Chipperfield (1971) [Longleat]
21) "Catch Me A Colobus", Gerald Durrell (1972)
22) "Zoo", Joan Crammond (1972)
23) "Animals As Friends: a head keeper remembers London Zoo", James Alldis (1973)
24) "Zoo Doctor", Oliver Graham-Jones (1973) [London Zoo]
25) "Gathering Of Animals", William Bridges (1974) [Bronx Zoo history]
26) "Zoovet", David Taylor (1976)
27) "The Ark In The Park: the Zoo in the nineteenth century", Wilfrid Blunt (1976) [London Zoo]
28) "Penguin Millionaire: the story of Birdland", Len Hill and Emma Wood (1976)
29) "Animals On View", Anthony Smith (1977) [guide to British collections]
30) "Zoos In The Making", Dorothy E. Shuttleworth (1977)
31) "Golden Bats And Pink Pigeons", Gerald Durrell (1977)
32) "Ruffled Feathers", Iain Grahame (1978) [about Daws Hall in Suffolk]
33) "The Animal Connection: the confessions of an ex-wild animal trafficker", Jean-Yves Domalain (1978 English edition)
34) "The Last Great Wild Beast Show: a discussion on the failure of British animal collections", Bill Jordan and Stefan Ormrod (1978)
35) "Lifeboats To Ararat", Sheldon Campbell (1978)
36) "Behaviour Of Captive Wild Animals", Hal Markowitz and Victor J. Stevens (editors) (1978)
37) "The Zoo", Dr. Peter Crowcroft (1978)
38) "A Zoo For All Seasons", Alfred Meyer (editor) (1979) [National Zoo, Washington DC]
39) "Chimps With Everything: the story of Twycross Zoo", Molly Badham (1979)
40) "My Jungle Babies", Rosamund Fisher (1979) [Kilverstone]
41) "Next Panda Please", David Taylor (1982)
42) "Some Of My Best Friends Are Animals", Michael Willis (1982) [Willowbank Wildlife Reserve, NZ]
43) "Zoo 2000: a look beyond the bars", Jeremy Cherfas (1984)
44) "Among The Animals: a zookeeper's story", Noel Virtue (1988)
45) "The Passion Of John Aspinall", Brian Masters (1988)
46) "A Tiger By The Tail", Derek Wood (1992) [Auckland Zoo history]
47) "Gerald Durrell's Army", Edward Whitley (1992)
48) "The Aye-Aye And I", Gerald Durrell (1992)
49) "Jambo: a gorilla's story", Richard Johnstone-Scott (1995)
50) "Himself And Other Animals: a portrait of Gerald Durrell", David Hughes (1997)
51) "Gerald Durrell: the authorised biography", Douglas Botting (1999)
52) "Zoo Tails", Oliver Graham-Jones (2001) [London Zoo]
53) "Postcards From The Zoo", Darill Clements (2002) [Taronga Zoo]
54)"Animal Attractions: nature on display in American zoos", Elizabeth Hanson (2002)