We applied several steady-state and time resolved-fluorescence techniques to study the complexation of some chromophoric-guests, esters from naphthalene carboxylic and dicarboxylic acids with cyclodextrins. Stoichiometry, binding constants and thermodynamics parameters, but also qualitative information about the location of the guest were obtained.  Emission spectra for these guests exhibit two electronic bands whose intensity ratios R are very sensitive to the medium polarity. R and its variation with cyclodextrin concentration and temperature can be employed to study the complexation. Complex stoichiometry and association constants at different temperatures were obtained from this change. DHº and DSº upon complexation were obtained by using van’t Hoff plots. Variation of the average lifetimes   with cyclodextrin concentration also depends on the guest and type of cyclodextrin used. R_CD®¥, fluorescence anisotropy and quenching measurement results are related to the guest and cyclodextrin cavity sizes, the possible cyclodextrin-guest interactions and the guest location in the complex, i.e, the structure of the complex. Molecular Mechanics methods can strengthen experimental results providing information about the complex geometry and stoichiometry, as well as on the driving forces governing the inclusion processes.