Series Books Speakers Dates 2020 January 4 February 4 March 5 April 5 May 5 2019 January 5 February 4 March 5 April 5 May 4 June 5 July 4 September 2 October 4 November 4 December 6 2018 January 5 February 3 March 3 April 3 May 2 August 1 September 4 October 4 November 3 2017 January 5 February 4 March 2 April 5 May 4 June 2 July 5 August 2 September 4 October 3 November 4 December 5 2016 January 1 March 4 April 4 May 5 June 4 July 4 August 4 September 4 October 5 November 6 December 4