The kinetics of nanocrystallization in amorphous TiO2 has been studied in non-isothermal conditions by DSC. It was found that this process could be well described by standard Johnson-Mehl-Avrami-Kolmogorov (JMA) model with kinetic exponent m congruent to 1. The kinetic parameters were calculated by simultaneous analysis of experimental data taken at different heating rates. These parameters were used its a basis for prediction of crystallization kinetics in isothermal conditions. The agreement between the JMA model prediction and experimental data depends on the method of preparation of amorphous TiO2. (C) 2004 Elsevier B.V. All rights reserved.