What to read after The Permanent Revolution?

2011 Reprint of 1931 American Edition. Full facsimile of the original edition, not reproduced with Optical Recognition Software. Trotsky put forward his conception of 'permanent revolution' as an explanation of how socialist revolutions could occur in societies that had not achieved advanced capitalism. Part of his theory is the impossibility of 'socialism in one country' - a view also held by Marx, but not integrated into his conception of permanent revolution. Trotsky's theory also argues, first, that the bourgeoisie in late-developing capitalist countries are incapable of developing the productive forces in such a manner as to achieve the sort of advanced capitalism which will fully develop an industrial proletariat. Second, that the proletariat can and must, therefore, seize social, economic and political power, leading an alliance with the peasantry.