What is perhaps most remarkable in regard to both Socialism and Anarchism is the association of a widespread popular movement with ideals for a better world. The ideals have been elaborated, in the first instance, by solitary writers of books, and yet powerful sections of the wage-earning classes have accepted them as their guide in the practical affairs of the world. In regard to Socialism this is evident; but in regard to Anarchism it is only true with some qualification. Anarchism as such has never been a widespread creed, it is only in the modified form of Syndicalism that it has achieved popularity. Unlike Socialism and Anarchism, Syndicalism is primarily the outcome, not of an idea, but of an organization: the fact of Trade Union organization came first, and the ideas of Syndicalism are those which seemed appropriate to this organization in the opinion of the more advanced French Trade Unions. But the ideas are, in the main, derived from Anarchism, and the men who gained acceptance for them were, for the most part, Anarchists. Thus we may regard Syndicalism as the Anarchism of the market-place as opposed to the Anarchism of isolated individuals which had preserved a precarious life throughout the previous decades. Taking this view, we find in Anarchist-Syndicalism the same combination of ideal and organization as we find in Socialist political parties. It is from this standpoint that our study of these movements will be undertaken. Socialism and Anarchism, in their modern form, spring respectively from two protagonists, Marx and Bakunin, who fought a lifelong battle, culminating in a split in the first International. We shall begin our study with these two men--first their teaching, and then the organizations which they founded or inspired. This will lead us to the spread of Socialism in more recent years, and thence to the Syndicalist revolt against Socialist emphasis on the State and political action, and to certain movements outside France which have some affinity with Syndicalism-- notably the I. W. W. in America and Guild Socialism in England. From this historical survey we shall pass to the consideration of some of the more pressing problems of the future, and shall try to decide in what respects the world would be happier if the aims of Socialists or Syndicalists were achieved.