“The Artist’s Guide to GIMP Effects,” by Michael Hammel; $45 from GIMP is a free photo-editing program for Windows. It competes with Photoshop with its many powerful features, and of course has 

Gimp Effectsthe advantage of being free. Versions are available for Windows and Macintosh at and for Linux at Each chapter of this book is a tutorial on how to create some special effect.

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