Out of his experience as a political pulse-taker and journalist, Samuel Lubell has woven a report on the racial conflict in the nation. Due to be published during what has been billed as ""a long, hot summer,"" the book synthesises the history of the Negro problem and illustrates the attitudes prevailing in various areas of the country by reporting interviews, thus: ""A Cleveland salesman confessed...,"" ""A Negro mechanic in Brooklyn told me..."" and so on. There are interesting indications as to how the assassination of President Kennedy has changed these attitudes; how people feel about the issue of bus-ing white children to Negro schools; how heavier demands by Negroes on the Democratic party may shift the Southerners out of that coalition. It is a book which will appeal mostly to people interested in politics because major portions of the text deal with the voting pattern of the Negroes. Mr. Lubell says this is an experiment in reporting changes and he anticipates that some of his findings and judgments will be challenged, but generally the reader will be struck by the common sense of his conclusions if not by the clarity of his composition.