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.bundle-expander-content{margin-top:9px;padding-right:1.1rem}#bundle-secondary-view .asin-image-border{box-shadow:0 1px 3px 1px rgba(0,0,0,.2);border-radius:4px;background-color:#fff}#bundle-secondary-view .bundle-items-expander{color:#0066C0}#bundle-secondary-view .gradient{background:linear-gradient(to bottom,#fff 0,#fff 15%,#EBF8FA 100%)}#bundle-secondary-view .bundle-atc-button{margin-top:17px;margin-bottom:21px}#bundle-secondary-view .delivery-message{margin-top:4px}#bundle-secondary-view .bundle-details-card{margin-bottom:17px}#bundle-secondary-view .savings-widget-header{margin-bottom:9px}#bundle-secondary-view .savings-widget-category{color:#555;text-align:right}#bundle-secondary-view .bundled-price-category{line-height:26px}#bundle-secondary-view .savings-widget-price-strikethrough{color:#555;text-decoration:line-through}#bundle-secondary-view .savings-widget-bundle-buying-price{color:#111}#bundle-secondary-view .success-text-container{height:60px;line-height:60px;margin-left:13px}#bundle-secondary-view .success-check{position:relative;top:40%}#bundle-secondary-view .bundle-savings-container{margin-left:1.1rem}#bundle-secondary-view .bundle-postATC-success-container{margin-top:8px}#bundle-secondary-view .bundle-atc-error-message,#bundle-secondary-view .bundle-contents-expander,#bundle-secondary-view .bundle-item-template,#bundle-secondary-view .bundle-postATC-spinner,#bundle-secondary-view .bundle-postATC-success-container,#bundle-secondary-view .bundle-reach-limit-message,#bundle-secondary-view .post-add-to-cart,#bundle-secondary-view .post-atc-button,#bundle-secondary-view .postATC-error-content,#bundle-secondary-view .postATC-recommendations{display:none}.launch-secondary-view-button{display:none} Disappointing book. A structure, such as a window, screen, or trellis, made of or containing such a framework. A former NASA roboticist, he left the agency in 2006 to draw comics on the Internet full-time, supporting himself through the sale of xkcd t-shirts, prints, posters, and books. @media all and (orientation:landscape){#btf-sub-nav-tab{display:none}}#btf-sub-nav-tab{z-index:101;height:52px;box-shadow:0 1px 6px 0 rgba(32,33,36,.28);background:#fff;display:table;table-layout:fixed;color:#111;width:100%}#btf-sub-nav-tab.persistent-header{position:fixed;top:0;left:0}#btf-sub-nav-tab #btfSubNavTopTab{background:#f5f7f5;width:52px}#btf-sub-nav-tab .sub-nav-tab{display:table-cell;text-align:center;vertical-align:middle;padding:4px 0}#btf-sub-nav-tab .sub-nav-tab .tab-content{display:inline-block;overflow:hidden}#btf-sub-nav-tab .sub-nav-tab .top-tab-content{line-height:0}#btf-sub-nav-tab .sub-nav-tab.active{font-weight:700;border-bottom:4px solid #e55d16;padding-bottom:0}#btf-sub-nav-tab .sub-nav-tab.active .tab-content{color:#e55d16} I was a bit worried after reading some of the reviews which said that it was hard to understand, but I am glad that I bought it because it is, for the most part, very easy to understand. I like books that explain things. There were only a few times where I was a bit confused, and then had the "aha!" .atsl-spinner-section{display:flex;justify-content:center;align-items:center}.staple-action-manage-staples-link{position:absolute;bottom:0;margin-bottom:1rem!important}.staple-action-update-container{line-height:15px} #ib-text-links-content{text-transform:uppercase}#ib-text-links-content ul li:not(:first-child){margin-left:15px}#ib-text-links-content ul li{display:inline-block;padding:6px 0 24px}#ib-text-links-content.text-link-style-space{min-height:50px}#ib-text-links-content.show-button ul{display:flex;display:-webkit-flex;justify-content:center;-webkit-justify-content:center}#ib-text-links-content.show-button ul li:not(:first-child){margin-left:15px}#ib-text-links-content.show-button ul li{display:inline-block;padding:6px 0 9px;width:100%;max-width:50%}#ib-text-links-content .a-button-text{text-transform:uppercase}#ib-text-links-content .a-button-focus{border-color:#adb1b8 #a2a6ac #8d9096;box-shadow:none;-webkit-box-shadow:none}#ib-text-links-content .a-button{border-color:#0066c0;width:100%}#ib-text-links-content .a-button-inner{background:#fff}#ib-text-links-content .a-button-text{color:#0066c0}#imageblock-360view-textlink:not(:only-child){width:auto!important;max-width:none!important;flex:1}#ar-view-text-link:not(:only-child){width:auto!important;max-width:none!important;margin-left:15px;flex:1.5}#imageblock-360view-textlink:only-child{max-width:100%!important;width:auto!important}#imageblock-360view-textlink:only-child #image-block-360-button #fezCameraIconContainer{max-width:100%;min-width:0;width:auto;text-align:center}#ar-view-text-link:only-child{max-width:100%!important;width:auto!important}#ar-view-text-link:only-child #fezLauncherLink #fezCameraIconContainer{max-width:100%;min-width:0;width:auto;text-align:center}#imageblock-360view-textlink #image-block-360-button{height:100%}#imageblock-360view-textlink #image-block-360-button #fezCameraIconContainer{display:flex;height:100%;align-items:center;justify-content:center;margin:0 auto;width:max-content}#imageblock-360view-textlink #image-block-360-button #fezCameraIconContainer img{vertical-align:middle;margin-right:6px;min-width:20px;max-width:20px}#imageblock-360view-textlink #image-block-360-button-announce{height:100%}#ar-view-text-link #fezLauncherLink-announce{height:100%}#ar-view-text-link #fezLauncherLink{height:100%}#ar-view-text-link #fezLauncherLink #fezCameraIconContainer{display:flex;height:100%;align-items:center;justify-content:center;max-width:fit-content;text-align:left;margin:0 auto;width:min-content;min-width:100%}#ar-view-text-link #fezLauncherLink #fezCameraIconContainer img{vertical-align:middle;margin-right:6px;min-width:18px;max-width:18px}#ar-view-text-link #fezLauncherLink #fezCameraIconContainer:lang(es-us){min-width:50%}.image-wrapper{position:relative}.ar-ib-ingress-container{position:absolute;width:100%;left:0;top:50%;transform:translateY(-50%)}.ar-ib-ingress-overlay{position:absolute;opacity:.6;background:#000;height:100%;width:100%;top:0;left:0}.ar-ib-ingress-container .text-content{color:#FFF}.ar-ib-ingress-btn{width:160px;height:32px}.ar-ib-ingress-btn .a-box-inner{text-align:center;height:30px;vertical-align:middle;display:table-cell}.ar-ib-ingress-btn .icon{padding-left:16px;padding-right:8px;vertical-align:middle}#dyr-ingress-content .a-button-text{text-transform:uppercase}#dyr-ingress-content ul{display:flex;display:-webkit-flex;justify-content:center;-webkit-justify-content:center}#dyr-ingress-content ul li:not(:first-child){margin-left:15px}#dyr-ingress-content ul li{display:inline-block;padding:6px 0 9px;width:100%;max-width:60%}#dyr-ingress-content .a-button-focus{border-color:#ADB1B8 #A2A6AC #8D9096;box-shadow:none;-webkit-box-shadow:none}#dyr-ingress-content .a-button{border-color:#0066c0;width:100%}#dyr-ingress-content .a-button-inner{background:#fff}#dyr-ingress-content .a-button-text{color:#0066c0} }); 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a teaching experiment; an experiment in living. AmazonUIPageJS : P).when('atf').execute(function(){