The Helm Identification Guides are a series of books that identify groups of birds.
The series include two types of guides, those that are: Early volumes were sometimes published under the Croom Helm or Christopher Helm imprints.
In addition, a parallel set of guides, very similar in design, was published by Pica Press in the 1990s (marked Pica in the list below); Pica was later absorbed into A & C Black (now part of Bloomsbury Publishing Plc), and these guides are now marketed as a single series.
A completely revised version of the initial Seabirds has been published by Lynx Edicions.
A list of titles in the series, in chronological order of publication, is as follows: Note: 'nW' indicates those that do not have worldwide coverage.