Every Book That Uses Trajan on the Cover

That's basically it.

[everybookwithtrajan]

Driven to Distraction - Lori Foster

[everybookwithtrajan]

Let's All Make the Day Count - Charlie Daniels (the title of the book is a little bit extended)

[everybookwithtrajan]

The Heroic Legend of Arslan - Yoshiki Tanaka

[everybookwithtrajan]

Lord Jim - Joseph Conrad

(used on the author's name)

[everybookwithtrajan]

Máquinas Mortais - Philip Reeve

[everybookwithtrajan]

Storm of the Century - Stephen King

[everybookwithtrajan]

Requiem for a Dream - Hubert Selby Jr.

[everybookwithtrajan]

I Am Legend - Richard Matheson

with modified L and D (and by "modified" I mean they condensed it)

[everybookwithtrajan]

Paper Money - Ken Follett

[everybookwithtrajan]

The Ultimate Hitchhiker's Guide to the Galaxy -  Douglas Adams

[everybookwithtrajan]

Jardins da Lua - Steven Erikson

[everybookwithtrajan]

A Tolkien Treasure

[everybookwithtrajan]

A Rising Moon - Stephen Leigh (not only it uses Trajan, but they distorted it)

[everybookwithtrajan]

Blood of the Four - Christopher Golden and Tim Lebbon

[everybookwithtrajan]

The Pillars of the Earth - Ken Follett

[everybookwithtrajan]

It Only Takes a Kiss - Wilma Counts

[everybookwithtrajan]

The Fake's Progress - Blaise Cronin