These aren't "books," but the following DVDs cover safety play (with many examples and drills) fairly well:
VEPS III - Safety Play and Strategy
VEPP III - Patterns and Safety Play
For those interested, the following list (from the
VEPS table of contents, under Disc III) lists every type of safety shot covered and demonstrated on VEPS III:
21. defensive safety shots
345. stop shot hide
346. stun over to hide
347. hide CB behind blockers
348. hide OB behind blockers
349. try to hide both balls
350. GEM: natural angle hide
351. create distance
352. kiss back for distance
353. bank for distance
354. stop on ball and create distance
355. freeze CB on rail with distance
356. stun over to freeze the CB
357. stun into a ball to freeze the CB
358. firm stop bank hide
359. stun-forward bank safe
360. stun-forward bank safe with rail freeze
361. GEM: 1/2-ball-hit equal-separation safe
362. safe relative to 1/2-ball-hit reference
363. natural-angle safe into blockers
364. combo line-of-centers stop safe
365. long bank hide and distance
366. long bank with reverse English hide off 2nd rail
367. long bank with reverse English kill and hide off 2nd rail
368. hiding to prevent an easy 1-rail kick escape
369. hiding to prevent a return safety
370. GEM: don't leave a "big" ball for your opponent
371. going rail first to hide
372. bank and stay close to rail to hide
373. GEM: using two rails to come into the line of blockers
374. multiple-rail bank to create distance and hide
375. thin a ball to create distance
376. rail-first thin hit to create distance and/or hide
377. corner hook your opponent
22. offensive safety shots
378. GEM: two-way bank shot with distance
379. two-way kick stop toward side pocket
380. two-way long shot with bad leave for opponent
381. two-way bank with hide behind ball
382. two-way cross-corner bank with pocket block
383. GEM: two-way billiard shot with distance
384. GEM: cluster breakout safety
385. kick cross-side two-way safety
386. clear, block, and hide safety
387. two-way pocket block shot
388. GEM: pocket hanger replace safety
389. billiard into pocket hanger for safety
390. multiple-rail two-way bank shot
391. GEM: miss cross-corner bank on short side for two-way shot
392. miss cross-corner bank on long side for two-way shot
23. safety replies
393. kick escape
394. swerve escape
395. jump options
396. easy jump escape
397. kick vs. jump
398. GEM: wrong-ball foul safe
399. rail-first stick and hide
400. rail-first draw to hide
401. foul 9-ball hanger in if no good options
402. kicking behind ball close to pocket
403. GEM: kick two rails for separation
404. break-up balls to prevent three consecutive fouls
405. corner-hook escape
24. ball-in-hand options
406. short stick and hide
407. solve problem ball
408. GEM: natural-angle billiard
409. GEM: natural-angle cluster break-out safe
410. GEM: close-range tangent-line cluster break-out
411. GEM: cluster break-out safety
412. play for third consecutive foul
413. GEM: play for ball-in-hand combo win
414. GEM: two-way combo win safe
Even without the DVD, the list can be useful for practice.
Regards,
Dave