This week's competition, in which you have to identify a book from its opening sentence, is from a work by an expert on the working class:
"For some time, for many decades, the materialist conception of history - the first-born intellectual child of Marx and Engels - has been growing in self-confidence."
* Entries, including postal address, should be sent to First Impressions, The Times Higher , Admiral House, 66-68 East Smithfield, London E1W 1BX, faxed to 020 7782 3300 or emailed to email@example.com
The winner receives a £25 book voucher. The closing date is April 3.
The winner of last week's competition, who identified William Paley's Natural Theology, is Deborah Friedell of New College, Oxford.
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