It has been a very long time since the publication of any volume dedicated solely
to space trajectory optimization. The last such work may be Jean-Pierre Marec’s
Optimal Space Trajectories. That book followed, after 16 years, Derek Lawden’s pioneering
Optimal Trajectories for Space Navigation of 1963. If either of these books can
be found now, it is only at a specialized used-book seller, for “astronomical” prices.