Estimado usuario,
Si estoy en lo correcto y dominas inglés pues te recomiendo que visites los siguientes tutoriales donde te introducirán desde lo más básico del PSD y si darte cuenta harás cosas increibles
lynda.com/home/DisplayCourse.aspx?lpk2=714
Cita: Photoshop has become an indispensible tool for photographers, designers, and all other creative professionals, as well as students. Photoshop CS4 Essential Training teaches a broad spectrum of core skills that are common to many creative fields: working with layers and selections; adjusting, manipulating, and retouching photos; painting; adding text; automating; preparing files for output; and more. Instructor Jan Kabili demonstrates established techniques as well as those made possible by some of the new features unique to Photoshop CS4. This course is indispensable to those who are new to the application, just learning this version, or expanding their skills. Example files accompany the course.
Ese tutorial contiene lo que buscas y podrás entender la lógica del PSD, porque antes de empezar con un programa debes entender su lógica.