 The first installment of the CryptoClassics series, containing more than 200 challenging Cryptoquip puzzles. $6.00 |  Here is the second installment of the popular CryptoClassics series, containing more than 200 of challenging Cryptoquip puzzles. $6.00 |
 In the next installment to this popular CryptoClassics series, Book 3 provides 114 challenging Cryptoquip puzzles. $3.50, 2/$6.00 |  The fourth installment to this popular CryptoClassics series. Here are 114 more challenging Cryptoquip puzzles. $3.50, 2/$6.00 |
 The fifth installment in the popular CryptoClassics series with 114 more challenging Cryptoquip puzzles. $3.50, 2/$6.00 |  The sixth and latest installment of the popular CryptoClassics series, with 114 challenging Cryptoquip puzzles. $3.50, 2/$6.00 |
 The seventh installment of the popular CryptoClassics series, with 95 challenging Cryptoquip puzzles. $3.50, 2/$6.00 |  The eighth installment of the popular CryptoClassics series, with 95 challenging Cryptoquip puzzles. $3.50, 2/$6.00 |
 The first 8-volume set of CryptoClassics offers more than 1,000 challenging Cryptoquip puzzles for just $26. That's a savings almost 25 percent over the single-copy price. $26.00 |  NEW! The ninth installment of the popular Cryptoclassics series. $3.50, 2/$6.00 |
 NEW! The tenth installment of the popular Cryptoclassics series with 95 challenging Cryptoclassics puzzles. $3.50, 2/$6.00 |  NEW! The eleventh installment of the popular Cryptoclassics series with 95 challenging Cryptoclassics puzzles. $3.50, 2/$6.00 |
 NEW! The twelfth installment of the popular Cryptoclassics series with 95 challenging Cryptoclassics puzzles. $3.50, 2/$6.00 |  NEW! The thirteenth installment of the popular Cryptoclassics series with 95 challenging Cryptoclassics puzzles. $3.50, 2/$6.00 |
 NEW! The fourteenth installment of the popular Cryptoclassics series with 95 challenging Cryptoclassics puzzles. $3.50, 2/$3.00 |  NEW! The fifteenth installment of the popular Cryptoclassics series with 95 challenging Cryptoclassics puzzles. $3.50, 2/$6.00 |
 NEW! The sixteenth installment of the popular Cryptoclassics series with 95 challenging Cryptoclassics puzzles. $3.50, 2/$6.00 |  NEW! Buy the second 8-volume set of your favorite puzzle books (volumes 9-16) for just $24 --- a 20% savings. $24.00 |