David Bronstein wrote many chess books and articles, and had a regular chess column in the Soviet newspaper Izvestia for many years. He was perhaps most highly regarded for his famous authorship of Zurich International Chess Tournament 1953 (English translation 1979). This book was an enormous seller in the USSR, going through many reprints, and is regarded among the very best chess books ever written. More recently, he co-authored the autobiographical The Sorcerer's Apprentice (1995), with his friend Tom Fürstenberg. Both have become landmarks in chess publishing history; Bronstein sought to amplify the ideas behind the players' moves rather than burdening the reader with pages of analysis of moves that never made it onto the scoresheet. Bronstein's romantic vision of chess was shown with his very successful adoption of the rarely seen King's Gambit in top-level competition. His pioneering theoretical and practical work (along with Boleslavsky and Efim Geller) in transforming the King's Indian Defence from a distrusted, obscure variation into a popular major system should be remembered, and is evidenced in his key contribution to the 1999 book Bronstein on the King's Indian. Bronstein played an exceptionally wide variety of openings during his long career, on a scale comparable with anyone else who ever reached the top level.

Two more variations are named after him. In the Caro-Kann Defence, the Bronstein–Larsen Variation goes 1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nf6 5.Nxf6+ gxf6. In the Scandinavian Defence, the Bronstein Variation goes 1.e4 d5 2.exd5 Qxd5 3.Nc3 Qd8.

Bronstein refused to sign a group letter denouncing the 1976 defection of Viktor Korchnoi, and he paid a personal price for this independence, as his state-paid Master's stipend was suspended, and he was also barred from major tournaments for more than a year. He was virtually banned from high-class events for several years in the mid-1980s.

Bronstein was a chess visionary. He was an early advocate of speeding up competitive chess. In 1973 he introduced the idea of adding a small time increment for each move made, a variant of which has become very popular in recent years and is implemented on almost all digital chess clocks. He challenged computer programs at every opportunity, usually achieving good results.

Bronstein enjoyed experimenting with unusual and offbeat openings such as the King's Gambit and Latvian Gambit, however he generally did not play them in serious games. Like most grandmasters of the 1950s–1960s, he favoured e4 openings, especially the Ruy Lopez, French Defence, and Sicilian Defence. Although he had an extensive knowledge of openings and opening theory, his endgame technique was considered less reliable.

In later years, Bronstein continued to stay active in tournament play, often in Western Europe after the breakup of the USSR. He maintained a very good standard (jointly winning the Hastings Swiss of 1994–95 at the age of 70), wrote several important chess books, and inspired young and old alike with endless simultaneous displays, a warm, gracious attitude, and glorious tales of his own rich chess heritage. Bronstein died on December 5, 2006 in Minsk, Belarus of complications from high blood pressure.

His final book was nearly complete when he died; it was published in 2007: Secret Notes, by David Bronstein and Sergei Voronkov, Zürich 2007. In the introduction to the book, Garry Kasparov, a fervent admirer of Bronstein's chess contributions, offers his opinion that Bronstein, based on his play, should have won the 1951 match against Botvinnik.

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