The examples (middlegame, endgame) are usually well analysed and theoretically wise the material is large and frequently updated. If you have any questions while studying the material, let me know and I will help. It is possible to buy it using PayPal and sending payments to email@example.com (please, indicate your e-mail address, so I know whom to send it to 🙂 ). Material will be sent in pgn/cbv files directly to your e-mail address ASAP.
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Today’s offers are:
Catalan – US$ 15 (instead of US$ 20)
Nimzo-Indian – US$ 15 (instead of US$ 20)
Gruenfeld – US$ 20 (instead of US$ 30)
Semi Slav – US$ 15 (instead of US$ 20)
10 examples on Playing on the half-open file – US$ 2
10 examples on How to win with an extra pawn – US$ 2
10 examples on The advantage of two Bishops – US$ 2
10 examples on Practical pawn endgames – US$ 2
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