The story of these books is under I-Spy 6d series / History
I Spy Books Check List. These are the 39 titles in the 6d I-Spy News Chronicle series which ran from circa 1952 to early 1960s.
[1] At The Seaside
[2] On The Farm
[3] History
[4] On A Train Journey
[5] Dogs
[6] In The Country
[7] At The Zoo – Animals
[8] At The Zoo – Birds & Reptiles
[9] In The Street
[10] On The Road
[11] The Sights Of London
[12] Horses & Ponies
[13] Ships & Harbours
[14] Boats & Waterways
[15] Aircraft
[16] Cars
[17] The Army
[18] The Wheel
[19] Sport
[20] People & Places
[21] Musical Instruments
[22] Men At Work – Building
[23] Antique Furniture
[24] The Unusual
[25] Road Transport
[26] Town Crafts
[27] Country Crafts
[28] The Sky
[29] People In Uniform
[30] Motorcycles & Cycles
[31] Bridges
[32] Sports Cars
[33] Roadmaking
[34] The Land
[35] Everyday Machines
[36] In Hospital
[37] Pets
[38] On The Pavement
[39] Churches
[29B] People