Convert from color to black and white using The GIMP.
Crop a photo using The GIMP.
Adjusting a phooto with levels tool in The GIMP.
Using sharpen and blur filters with The GIMP
Using basic text in the GIMP
Peek into Ubuntu
Menus of Gnome in Ubuntu
Install and remove applications
Calle Preciados, Madrid
Calle Preciados, underexposed Madrid