Gimpshop- free Photoshop alternative
GIMPshop is a modification of the free and open source graphics program GNU Image Manipulation Program (GIMP), with the intent to replicate the feel of Adobe Photoshop. Its primary purpose is to make users of Photoshop feel comfortable using GIMP.

GET it free here at :
http://www.gimpshop.com/


Recommended Books

https://www.gimpshop.com/books